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Finding the Fourth Proportional to 12,652.96, 18,950.28 and 8,760.12

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Solution

The fourth proportional to 12,652.96, 18,950.28 and 8,760.12 is: 13,119.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,652.96 : 18,950.28 = 8,760.12 : x
  2. Step 2: Convert to fraction form
    12,652.96/18,950.28 = 8,760.12/x
  3. Step 3: Cross multiply
    12,652.96x = 18,950.28 × 8,760.12
  4. Step 4: Simplify right side
    12,652.96x = 166,006,726.83
  5. Step 5: Solve for x
    x = 166,006,726.83/12,652.96
  6. Step 6: Final answer
    x = 13,119.99

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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.