Home / 18,874.89-28,312.43-5,727.38

Finding the Fourth Proportional to 18,874.89, 28,312.43 and 5,727.38

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Solution

The fourth proportional to 18,874.89, 28,312.43 and 5,727.38 is: 8,591.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,874.89 : 28,312.43 = 5,727.38 : x
  2. Step 2: Convert to fraction form
    18,874.89/28,312.43 = 5,727.38/x
  3. Step 3: Cross multiply
    18,874.89x = 28,312.43 × 5,727.38
  4. Step 4: Simplify right side
    18,874.89x = 162,155,875.13
  5. Step 5: Solve for x
    x = 162,155,875.13/18,874.89
  6. Step 6: Final answer
    x = 8,591.09

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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.