Home / 14,712.62-20,302.90-8,423.78

Finding the Fourth Proportional to 14,712.62, 20,302.90 and 8,423.78

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Solution

The fourth proportional to 14,712.62, 20,302.90 and 8,423.78 is: 11,624.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,712.62 : 20,302.90 = 8,423.78 : x
  2. Step 2: Convert to fraction form
    14,712.62/20,302.90 = 8,423.78/x
  3. Step 3: Cross multiply
    14,712.62x = 20,302.90 × 8,423.78
  4. Step 4: Simplify right side
    14,712.62x = 171,027,162.96
  5. Step 5: Solve for x
    x = 171,027,162.96/14,712.62
  6. Step 6: Final answer
    x = 11,624.52

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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.