Home / 18,124.31-25,011.55-11,052.20

Finding the Fourth Proportional to 18,124.31, 25,011.55 and 11,052.20

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Solution

The fourth proportional to 18,124.31, 25,011.55 and 11,052.20 is: 15,252.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.31 : 25,011.55 = 11,052.20 : x
  2. Step 2: Convert to fraction form
    18,124.31/25,011.55 = 11,052.20/x
  3. Step 3: Cross multiply
    18,124.31x = 25,011.55 × 11,052.20
  4. Step 4: Simplify right side
    18,124.31x = 276,432,729.25
  5. Step 5: Solve for x
    x = 276,432,729.25/18,124.31
  6. Step 6: Final answer
    x = 15,252.04

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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.