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Finding the Fourth Proportional to 15,003.62, 22,503.12 and 5,140.64

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Solution

The fourth proportional to 15,003.62, 22,503.12 and 5,140.64 is: 7,710.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.62 : 22,503.12 = 5,140.64 : x
  2. Step 2: Convert to fraction form
    15,003.62/22,503.12 = 5,140.64/x
  3. Step 3: Cross multiply
    15,003.62x = 22,503.12 × 5,140.64
  4. Step 4: Simplify right side
    15,003.62x = 115,680,438.80
  5. Step 5: Solve for x
    x = 115,680,438.80/15,003.62
  6. Step 6: Final answer
    x = 7,710.17

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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.