Home / 12,012.47-18,000.12-9,373.71

Finding the Fourth Proportional to 12,012.47, 18,000.12 and 9,373.71

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Solution

The fourth proportional to 12,012.47, 18,000.12 and 9,373.71 is: 14,046.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,012.47 : 18,000.12 = 9,373.71 : x
  2. Step 2: Convert to fraction form
    12,012.47/18,000.12 = 9,373.71/x
  3. Step 3: Cross multiply
    12,012.47x = 18,000.12 × 9,373.71
  4. Step 4: Simplify right side
    12,012.47x = 168,727,904.85
  5. Step 5: Solve for x
    x = 168,727,904.85/12,012.47
  6. Step 6: Final answer
    x = 14,046.07

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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.