Home / 8,707-12,016.38-4,981.72

Finding the Fourth Proportional to 8,707, 12,016.38 and 4,981.72

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Solution

The fourth proportional to 8,707, 12,016.38 and 4,981.72 is: 6,875.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707 : 12,016.38 = 4,981.72 : x
  2. Step 2: Convert to fraction form
    8,707/12,016.38 = 4,981.72/x
  3. Step 3: Cross multiply
    8,707x = 12,016.38 × 4,981.72
  4. Step 4: Simplify right side
    8,707x = 59,862,240.57
  5. Step 5: Solve for x
    x = 59,862,240.57/8,707
  6. Step 6: Final answer
    x = 6,875.19

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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.