Home / 10,084.78-13,917.18-5,547.43

Finding the Fourth Proportional to 10,084.78, 13,917.18 and 5,547.43

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Solution

The fourth proportional to 10,084.78, 13,917.18 and 5,547.43 is: 7,655.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,084.78 : 13,917.18 = 5,547.43 : x
  2. Step 2: Convert to fraction form
    10,084.78/13,917.18 = 5,547.43/x
  3. Step 3: Cross multiply
    10,084.78x = 13,917.18 × 5,547.43
  4. Step 4: Simplify right side
    10,084.78x = 77,204,581.85
  5. Step 5: Solve for x
    x = 77,204,581.85/10,084.78
  6. Step 6: Final answer
    x = 7,655.55

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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.