Home / 19,090.69-26,345.15-11,638.69

Finding the Fourth Proportional to 19,090.69, 26,345.15 and 11,638.69

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Solution

The fourth proportional to 19,090.69, 26,345.15 and 11,638.69 is: 16,061.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.69 : 26,345.15 = 11,638.69 : x
  2. Step 2: Convert to fraction form
    19,090.69/26,345.15 = 11,638.69/x
  3. Step 3: Cross multiply
    19,090.69x = 26,345.15 × 11,638.69
  4. Step 4: Simplify right side
    19,090.69x = 306,622,953.44
  5. Step 5: Solve for x
    x = 306,622,953.44/19,090.69
  6. Step 6: Final answer
    x = 16,061.39

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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.