Home / 14,500.10-20,011.74-8,127.72

Finding the Fourth Proportional to 14,500.10, 20,011.74 and 8,127.72

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Solution

The fourth proportional to 14,500.10, 20,011.74 and 8,127.72 is: 11,217.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,500.10 : 20,011.74 = 8,127.72 : x
  2. Step 2: Convert to fraction form
    14,500.10/20,011.74 = 8,127.72/x
  3. Step 3: Cross multiply
    14,500.10x = 20,011.74 × 8,127.72
  4. Step 4: Simplify right side
    14,500.10x = 162,649,819.43
  5. Step 5: Solve for x
    x = 162,649,819.43/14,500.10
  6. Step 6: Final answer
    x = 11,217.15

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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.