Home / 9,212.60-12,713.40-5,020.85

Finding the Fourth Proportional to 9,212.60, 12,713.40 and 5,020.85

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Solution

The fourth proportional to 9,212.60, 12,713.40 and 5,020.85 is: 6,928.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.60 : 12,713.40 = 5,020.85 : x
  2. Step 2: Convert to fraction form
    9,212.60/12,713.40 = 5,020.85/x
  3. Step 3: Cross multiply
    9,212.60x = 12,713.40 × 5,020.85
  4. Step 4: Simplify right side
    9,212.60x = 63,832,125.00
  5. Step 5: Solve for x
    x = 63,832,125.00/9,212.60
  6. Step 6: Final answer
    x = 6,928.78

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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.