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Finding the Fourth Proportional to 15,349.60, 23,008.20 and 8,761.60

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Solution

The fourth proportional to 15,349.60, 23,008.20 and 8,761.60 is: 13,133.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.60 : 23,008.20 = 8,761.60 : x
  2. Step 2: Convert to fraction form
    15,349.60/23,008.20 = 8,761.60/x
  3. Step 3: Cross multiply
    15,349.60x = 23,008.20 × 8,761.60
  4. Step 4: Simplify right side
    15,349.60x = 201,588,645.12
  5. Step 5: Solve for x
    x = 201,588,645.12/15,349.60
  6. Step 6: Final answer
    x = 13,133.15

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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.