Home / 18,251.02-25,182.08-11,080.78

Finding the Fourth Proportional to 18,251.02, 25,182.08 and 11,080.78

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Solution

The fourth proportional to 18,251.02, 25,182.08 and 11,080.78 is: 15,288.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,251.02 : 25,182.08 = 11,080.78 : x
  2. Step 2: Convert to fraction form
    18,251.02/25,182.08 = 11,080.78/x
  3. Step 3: Cross multiply
    18,251.02x = 25,182.08 × 11,080.78
  4. Step 4: Simplify right side
    18,251.02x = 279,037,088.42
  5. Step 5: Solve for x
    x = 279,037,088.42/18,251.02
  6. Step 6: Final answer
    x = 15,288.85

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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.