Home / 12,320.69-18,475.11-8,624.66

Finding the Fourth Proportional to 12,320.69, 18,475.11 and 8,624.66

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Solution

The fourth proportional to 12,320.69, 18,475.11 and 8,624.66 is: 12,932.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.69 : 18,475.11 = 8,624.66 : x
  2. Step 2: Convert to fraction form
    12,320.69/18,475.11 = 8,624.66/x
  3. Step 3: Cross multiply
    12,320.69x = 18,475.11 × 8,624.66
  4. Step 4: Simplify right side
    12,320.69x = 159,341,449.84
  5. Step 5: Solve for x
    x = 159,341,449.84/12,320.69
  6. Step 6: Final answer
    x = 12,932.84

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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.