Home / 18,078.29-24,947.85-10,120.60

Finding the Fourth Proportional to 18,078.29, 24,947.85 and 10,120.60

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Solution

The fourth proportional to 18,078.29, 24,947.85 and 10,120.60 is: 13,966.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,078.29 : 24,947.85 = 10,120.60 : x
  2. Step 2: Convert to fraction form
    18,078.29/24,947.85 = 10,120.60/x
  3. Step 3: Cross multiply
    18,078.29x = 24,947.85 × 10,120.60
  4. Step 4: Simplify right side
    18,078.29x = 252,487,082.59
  5. Step 5: Solve for x
    x = 252,487,082.59/18,078.29
  6. Step 6: Final answer
    x = 13,966.32

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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.