Home / 10,839.20-14,959.55-6,123.38

Finding the Fourth Proportional to 10,839.20, 14,959.55 and 6,123.38

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Solution

The fourth proportional to 10,839.20, 14,959.55 and 6,123.38 is: 8,451.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,839.20 : 14,959.55 = 6,123.38 : x
  2. Step 2: Convert to fraction form
    10,839.20/14,959.55 = 6,123.38/x
  3. Step 3: Cross multiply
    10,839.20x = 14,959.55 × 6,123.38
  4. Step 4: Simplify right side
    10,839.20x = 91,602,949.79
  5. Step 5: Solve for x
    x = 91,602,949.79/10,839.20
  6. Step 6: Final answer
    x = 8,451.08

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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.