Home / 19,113.36-26,381.88-11,159.97

Finding the Fourth Proportional to 19,113.36, 26,381.88 and 11,159.97

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Solution

The fourth proportional to 19,113.36, 26,381.88 and 11,159.97 is: 15,403.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,113.36 : 26,381.88 = 11,159.97 : x
  2. Step 2: Convert to fraction form
    19,113.36/26,381.88 = 11,159.97/x
  3. Step 3: Cross multiply
    19,113.36x = 26,381.88 × 11,159.97
  4. Step 4: Simplify right side
    19,113.36x = 294,420,989.34
  5. Step 5: Solve for x
    x = 294,420,989.34/19,113.36
  6. Step 6: Final answer
    x = 15,403.94

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Half scale
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Double scale
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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.