Home / 18,411.28-25,407.96-10,027.78

Finding the Fourth Proportional to 18,411.28, 25,407.96 and 10,027.78

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Solution

The fourth proportional to 18,411.28, 25,407.96 and 10,027.78 is: 13,838.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,411.28 : 25,407.96 = 10,027.78 : x
  2. Step 2: Convert to fraction form
    18,411.28/25,407.96 = 10,027.78/x
  3. Step 3: Cross multiply
    18,411.28x = 25,407.96 × 10,027.78
  4. Step 4: Simplify right side
    18,411.28x = 254,785,433.13
  5. Step 5: Solve for x
    x = 254,785,433.13/18,411.28
  6. Step 6: Final answer
    x = 13,838.55

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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.