Home / 18,630.92-25,708.38-11,077.40

Finding the Fourth Proportional to 18,630.92, 25,708.38 and 11,077.40

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Solution

The fourth proportional to 18,630.92, 25,708.38 and 11,077.40 is: 15,285.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.92 : 25,708.38 = 11,077.40 : x
  2. Step 2: Convert to fraction form
    18,630.92/25,708.38 = 11,077.40/x
  3. Step 3: Cross multiply
    18,630.92x = 25,708.38 × 11,077.40
  4. Step 4: Simplify right side
    18,630.92x = 284,782,008.61
  5. Step 5: Solve for x
    x = 284,782,008.61/18,630.92
  6. Step 6: Final answer
    x = 15,285.45

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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.