Home / 14,866.18-20,515.32-8,151.92

Finding the Fourth Proportional to 14,866.18, 20,515.32 and 8,151.92

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Solution

The fourth proportional to 14,866.18, 20,515.32 and 8,151.92 is: 11,249.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,866.18 : 20,515.32 = 8,151.92 : x
  2. Step 2: Convert to fraction form
    14,866.18/20,515.32 = 8,151.92/x
  3. Step 3: Cross multiply
    14,866.18x = 20,515.32 × 8,151.92
  4. Step 4: Simplify right side
    14,866.18x = 167,239,298.70
  5. Step 5: Solve for x
    x = 167,239,298.70/14,866.18
  6. Step 6: Final answer
    x = 11,249.65

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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.