Home / 18,715.86-25,832.23-12,343.61

Finding the Fourth Proportional to 18,715.86, 25,832.23 and 12,343.61

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Solution

The fourth proportional to 18,715.86, 25,832.23 and 12,343.61 is: 17,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.86 : 25,832.23 = 12,343.61 : x
  2. Step 2: Convert to fraction form
    18,715.86/25,832.23 = 12,343.61/x
  3. Step 3: Cross multiply
    18,715.86x = 25,832.23 × 12,343.61
  4. Step 4: Simplify right side
    18,715.86x = 318,862,972.55
  5. Step 5: Solve for x
    x = 318,862,972.55/18,715.86
  6. Step 6: Final answer
    x = 17,037.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.