Home / 18,565.98-27,851.58-5,419.32

Finding the Fourth Proportional to 18,565.98, 27,851.58 and 5,419.32

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Solution

The fourth proportional to 18,565.98, 27,851.58 and 5,419.32 is: 8,129.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,565.98 : 27,851.58 = 5,419.32 : x
  2. Step 2: Convert to fraction form
    18,565.98/27,851.58 = 5,419.32/x
  3. Step 3: Cross multiply
    18,565.98x = 27,851.58 × 5,419.32
  4. Step 4: Simplify right side
    18,565.98x = 150,936,624.53
  5. Step 5: Solve for x
    x = 150,936,624.53/18,565.98
  6. Step 6: Final answer
    x = 8,129.74

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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.