Home / 10,862.20-14,988.94-6,386.14

Finding the Fourth Proportional to 10,862.20, 14,988.94 and 6,386.14

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Solution

The fourth proportional to 10,862.20, 14,988.94 and 6,386.14 is: 8,812.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,862.20 : 14,988.94 = 6,386.14 : x
  2. Step 2: Convert to fraction form
    10,862.20/14,988.94 = 6,386.14/x
  3. Step 3: Cross multiply
    10,862.20x = 14,988.94 × 6,386.14
  4. Step 4: Simplify right side
    10,862.20x = 95,721,469.29
  5. Step 5: Solve for x
    x = 95,721,469.29/10,862.20
  6. Step 6: Final answer
    x = 8,812.35

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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.