Home / 11,345.71-17,018.57-3,555.13

Finding the Fourth Proportional to 11,345.71, 17,018.57 and 3,555.13

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Solution

The fourth proportional to 11,345.71, 17,018.57 and 3,555.13 is: 5,332.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,345.71 : 17,018.57 = 3,555.13 : x
  2. Step 2: Convert to fraction form
    11,345.71/17,018.57 = 3,555.13/x
  3. Step 3: Cross multiply
    11,345.71x = 17,018.57 × 3,555.13
  4. Step 4: Simplify right side
    11,345.71x = 60,503,125.90
  5. Step 5: Solve for x
    x = 60,503,125.90/11,345.71
  6. Step 6: Final answer
    x = 5,332.69

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.