Home / 10,472.24-14,446.88-9,278.45

Finding the Fourth Proportional to 10,472.24, 14,446.88 and 9,278.45

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Solution

The fourth proportional to 10,472.24, 14,446.88 and 9,278.45 is: 12,799.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,472.24 : 14,446.88 = 9,278.45 : x
  2. Step 2: Convert to fraction form
    10,472.24/14,446.88 = 9,278.45/x
  3. Step 3: Cross multiply
    10,472.24x = 14,446.88 × 9,278.45
  4. Step 4: Simplify right side
    10,472.24x = 134,044,535.11
  5. Step 5: Solve for x
    x = 134,044,535.11/10,472.24
  6. Step 6: Final answer
    x = 12,799.99

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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.