Home / 8,707.50-12,016.62-5,565.78

Finding the Fourth Proportional to 8,707.50, 12,016.62 and 5,565.78

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Solution

The fourth proportional to 8,707.50, 12,016.62 and 5,565.78 is: 7,680.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707.50 : 12,016.62 = 5,565.78 : x
  2. Step 2: Convert to fraction form
    8,707.50/12,016.62 = 5,565.78/x
  3. Step 3: Cross multiply
    8,707.50x = 12,016.62 × 5,565.78
  4. Step 4: Simplify right side
    8,707.50x = 66,881,863.26
  5. Step 5: Solve for x
    x = 66,881,863.26/8,707.50
  6. Step 6: Final answer
    x = 7,680.95

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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.