Home / 14,115.30-21,049.61-12,368.43

Finding the Fourth Proportional to 14,115.30, 21,049.61 and 12,368.43

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Solution

The fourth proportional to 14,115.30, 21,049.61 and 12,368.43 is: 18,444.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.30 : 21,049.61 = 12,368.43 : x
  2. Step 2: Convert to fraction form
    14,115.30/21,049.61 = 12,368.43/x
  3. Step 3: Cross multiply
    14,115.30x = 21,049.61 × 12,368.43
  4. Step 4: Simplify right side
    14,115.30x = 260,350,565.97
  5. Step 5: Solve for x
    x = 260,350,565.97/14,115.30
  6. Step 6: Final answer
    x = 18,444.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.