Home / 18,519.54-27,779.32-10,724.10

Finding the Fourth Proportional to 18,519.54, 27,779.32 and 10,724.10

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Solution

The fourth proportional to 18,519.54, 27,779.32 and 10,724.10 is: 16,086.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.54 : 27,779.32 = 10,724.10 : x
  2. Step 2: Convert to fraction form
    18,519.54/27,779.32 = 10,724.10/x
  3. Step 3: Cross multiply
    18,519.54x = 27,779.32 × 10,724.10
  4. Step 4: Simplify right side
    18,519.54x = 297,908,205.61
  5. Step 5: Solve for x
    x = 297,908,205.61/18,519.54
  6. Step 6: Final answer
    x = 16,086.16

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.