Home / 13,712.55-20,568.83-12,502.95

Finding the Fourth Proportional to 13,712.55, 20,568.83 and 12,502.95

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Solution

The fourth proportional to 13,712.55, 20,568.83 and 12,502.95 is: 18,754.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.55 : 20,568.83 = 12,502.95 : x
  2. Step 2: Convert to fraction form
    13,712.55/20,568.83 = 12,502.95/x
  3. Step 3: Cross multiply
    13,712.55x = 20,568.83 × 12,502.95
  4. Step 4: Simplify right side
    13,712.55x = 257,170,990.53
  5. Step 5: Solve for x
    x = 257,170,990.53/13,712.55
  6. Step 6: Final answer
    x = 18,754.43

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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.