Home / 8,999.72-12,419.57-5,020.83

Finding the Fourth Proportional to 8,999.72, 12,419.57 and 5,020.83

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Solution

The fourth proportional to 8,999.72, 12,419.57 and 5,020.83 is: 6,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,999.72 : 12,419.57 = 5,020.83 : x
  2. Step 2: Convert to fraction form
    8,999.72/12,419.57 = 5,020.83/x
  3. Step 3: Cross multiply
    8,999.72x = 12,419.57 × 5,020.83
  4. Step 4: Simplify right side
    8,999.72x = 62,356,562.20
  5. Step 5: Solve for x
    x = 62,356,562.20/8,999.72
  6. Step 6: Final answer
    x = 6,928.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.