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Finding the Fourth Proportional to 10,370.80, 15,523.80 and 7,454.80

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Solution

The fourth proportional to 10,370.80, 15,523.80 and 7,454.80 is: 11,158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370.80 : 15,523.80 = 7,454.80 : x
  2. Step 2: Convert to fraction form
    10,370.80/15,523.80 = 7,454.80/x
  3. Step 3: Cross multiply
    10,370.80x = 15,523.80 × 7,454.80
  4. Step 4: Simplify right side
    10,370.80x = 115,726,824.24
  5. Step 5: Solve for x
    x = 115,726,824.24/10,370.80
  6. Step 6: Final answer
    x = 11,158.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.