Home / 10,839.20-14,957.28-7,307.18

Finding the Fourth Proportional to 10,839.20, 14,957.28 and 7,307.18

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Solution

The fourth proportional to 10,839.20, 14,957.28 and 7,307.18 is: 10,083.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.20 : 14,957.28 = 7,307.18 : x
  2. Step 2: Convert to fraction form
    10,839.20/14,957.28 = 7,307.18/x
  3. Step 3: Cross multiply
    10,839.20x = 14,957.28 × 7,307.18
  4. Step 4: Simplify right side
    10,839.20x = 109,295,537.27
  5. Step 5: Solve for x
    x = 109,295,537.27/10,839.20
  6. Step 6: Final answer
    x = 10,083.36

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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.