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Finding the Fourth Proportional to 15,165.73, 22,748.80 and 6,406.80

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Solution

The fourth proportional to 15,165.73, 22,748.80 and 6,406.80 is: 9,610.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,165.73 : 22,748.80 = 6,406.80 : x
  2. Step 2: Convert to fraction form
    15,165.73/22,748.80 = 6,406.80/x
  3. Step 3: Cross multiply
    15,165.73x = 22,748.80 × 6,406.80
  4. Step 4: Simplify right side
    15,165.73x = 145,747,011.84
  5. Step 5: Solve for x
    x = 145,747,011.84/15,165.73
  6. Step 6: Final answer
    x = 9,610.29

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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.