Home / 12,358.70-18,529.24-5,781.30

Finding the Fourth Proportional to 12,358.70, 18,529.24 and 5,781.30

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Solution

The fourth proportional to 12,358.70, 18,529.24 and 5,781.30 is: 8,667.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.70 : 18,529.24 = 5,781.30 : x
  2. Step 2: Convert to fraction form
    12,358.70/18,529.24 = 5,781.30/x
  3. Step 3: Cross multiply
    12,358.70x = 18,529.24 × 5,781.30
  4. Step 4: Simplify right side
    12,358.70x = 107,123,095.21
  5. Step 5: Solve for x
    x = 107,123,095.21/12,358.70
  6. Step 6: Final answer
    x = 8,667.83

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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.