Home / 14,233.80-21,353.90-8,387.40

Finding the Fourth Proportional to 14,233.80, 21,353.90 and 8,387.40

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Solution

The fourth proportional to 14,233.80, 21,353.90 and 8,387.40 is: 12,582.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,233.80 : 21,353.90 = 8,387.40 : x
  2. Step 2: Convert to fraction form
    14,233.80/21,353.90 = 8,387.40/x
  3. Step 3: Cross multiply
    14,233.80x = 21,353.90 × 8,387.40
  4. Step 4: Simplify right side
    14,233.80x = 179,103,700.86
  5. Step 5: Solve for x
    x = 179,103,700.86/14,233.80
  6. Step 6: Final answer
    x = 12,582.99

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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.