Home / 18,895.38-28,342.05-5,746.72

Finding the Fourth Proportional to 18,895.38, 28,342.05 and 5,746.72

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Solution

The fourth proportional to 18,895.38, 28,342.05 and 5,746.72 is: 8,619.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,895.38 : 28,342.05 = 5,746.72 : x
  2. Step 2: Convert to fraction form
    18,895.38/28,342.05 = 5,746.72/x
  3. Step 3: Cross multiply
    18,895.38x = 28,342.05 × 5,746.72
  4. Step 4: Simplify right side
    18,895.38x = 162,873,898.35
  5. Step 5: Solve for x
    x = 162,873,898.35/18,895.38
  6. Step 6: Final answer
    x = 8,619.78

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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.