Home / 18,863.66-28,298.42-5,712.90

Finding the Fourth Proportional to 18,863.66, 28,298.42 and 5,712.90

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Solution

The fourth proportional to 18,863.66, 28,298.42 and 5,712.90 is: 8,570.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,863.66 : 28,298.42 = 5,712.90 : x
  2. Step 2: Convert to fraction form
    18,863.66/28,298.42 = 5,712.90/x
  3. Step 3: Cross multiply
    18,863.66x = 28,298.42 × 5,712.90
  4. Step 4: Simplify right side
    18,863.66x = 161,666,043.62
  5. Step 5: Solve for x
    x = 161,666,043.62/18,863.66
  6. Step 6: Final answer
    x = 8,570.24

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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.