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Finding the Fourth Proportional to 9,377.85, 12,957.03 and 7,403.52

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Solution

The fourth proportional to 9,377.85, 12,957.03 and 7,403.52 is: 10,229.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,377.85 : 12,957.03 = 7,403.52 : x
  2. Step 2: Convert to fraction form
    9,377.85/12,957.03 = 7,403.52/x
  3. Step 3: Cross multiply
    9,377.85x = 12,957.03 × 7,403.52
  4. Step 4: Simplify right side
    9,377.85x = 95,927,630.75
  5. Step 5: Solve for x
    x = 95,927,630.75/9,377.85
  6. Step 6: Final answer
    x = 10,229.17

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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.