Home / 9,348.40-12,901.20-5,370.76

Finding the Fourth Proportional to 9,348.40, 12,901.20 and 5,370.76

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Solution

The fourth proportional to 9,348.40, 12,901.20 and 5,370.76 is: 7,411.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,348.40 : 12,901.20 = 5,370.76 : x
  2. Step 2: Convert to fraction form
    9,348.40/12,901.20 = 5,370.76/x
  3. Step 3: Cross multiply
    9,348.40x = 12,901.20 × 5,370.76
  4. Step 4: Simplify right side
    9,348.40x = 69,289,248.91
  5. Step 5: Solve for x
    x = 69,289,248.91/9,348.40
  6. Step 6: Final answer
    x = 7,411.88

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Half scale
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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.