Home / 14,251.20-21,376.80-8,637.90

Finding the Fourth Proportional to 14,251.20, 21,376.80 and 8,637.90

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Solution

The fourth proportional to 14,251.20, 21,376.80 and 8,637.90 is: 12,956.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,251.20 : 21,376.80 = 8,637.90 : x
  2. Step 2: Convert to fraction form
    14,251.20/21,376.80 = 8,637.90/x
  3. Step 3: Cross multiply
    14,251.20x = 21,376.80 × 8,637.90
  4. Step 4: Simplify right side
    14,251.20x = 184,650,660.72
  5. Step 5: Solve for x
    x = 184,650,660.72/14,251.20
  6. Step 6: Final answer
    x = 12,956.85

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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.