Home / 18,490.64-25,517.04-10,107.20

Finding the Fourth Proportional to 18,490.64, 25,517.04 and 10,107.20

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Solution

The fourth proportional to 18,490.64, 25,517.04 and 10,107.20 is: 13,947.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.64 : 25,517.04 = 10,107.20 : x
  2. Step 2: Convert to fraction form
    18,490.64/25,517.04 = 10,107.20/x
  3. Step 3: Cross multiply
    18,490.64x = 25,517.04 × 10,107.20
  4. Step 4: Simplify right side
    18,490.64x = 257,905,826.69
  5. Step 5: Solve for x
    x = 257,905,826.69/18,490.64
  6. Step 6: Final answer
    x = 13,947.91

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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.