Home / 13,937.43-20,909.79-8,088.42

Finding the Fourth Proportional to 13,937.43, 20,909.79 and 8,088.42

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Solution

The fourth proportional to 13,937.43, 20,909.79 and 8,088.42 is: 12,134.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.43 : 20,909.79 = 8,088.42 : x
  2. Step 2: Convert to fraction form
    13,937.43/20,909.79 = 8,088.42/x
  3. Step 3: Cross multiply
    13,937.43x = 20,909.79 × 8,088.42
  4. Step 4: Simplify right side
    13,937.43x = 169,127,163.63
  5. Step 5: Solve for x
    x = 169,127,163.63/13,937.43
  6. Step 6: Final answer
    x = 12,134.75

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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.