Home / 19,155.45-26,430.57-11,196.12

Finding the Fourth Proportional to 19,155.45, 26,430.57 and 11,196.12

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Solution

The fourth proportional to 19,155.45, 26,430.57 and 11,196.12 is: 15,448.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,155.45 : 26,430.57 = 11,196.12 : x
  2. Step 2: Convert to fraction form
    19,155.45/26,430.57 = 11,196.12/x
  3. Step 3: Cross multiply
    19,155.45x = 26,430.57 × 11,196.12
  4. Step 4: Simplify right side
    19,155.45x = 295,919,833.39
  5. Step 5: Solve for x
    x = 295,919,833.39/19,155.45
  6. Step 6: Final answer
    x = 15,448.34

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Half scale
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Double scale
Find fourth proportional to 19,156.45, 26,431.95 and 11,197.12
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.