Home / 18,350.92-25,332.02-12,390.66

Finding the Fourth Proportional to 18,350.92, 25,332.02 and 12,390.66

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Solution

The fourth proportional to 18,350.92, 25,332.02 and 12,390.66 is: 17,104.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,350.92 : 25,332.02 = 12,390.66 : x
  2. Step 2: Convert to fraction form
    18,350.92/25,332.02 = 12,390.66/x
  3. Step 3: Cross multiply
    18,350.92x = 25,332.02 × 12,390.66
  4. Step 4: Simplify right side
    18,350.92x = 313,880,446.93
  5. Step 5: Solve for x
    x = 313,880,446.93/18,350.92
  6. Step 6: Final answer
    x = 17,104.34

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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.