Home / 8,862.95-12,231.15-5,086.80

Finding the Fourth Proportional to 8,862.95, 12,231.15 and 5,086.80

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Solution

The fourth proportional to 8,862.95, 12,231.15 and 5,086.80 is: 7,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.95 : 12,231.15 = 5,086.80 : x
  2. Step 2: Convert to fraction form
    8,862.95/12,231.15 = 5,086.80/x
  3. Step 3: Cross multiply
    8,862.95x = 12,231.15 × 5,086.80
  4. Step 4: Simplify right side
    8,862.95x = 62,217,423.36
  5. Step 5: Solve for x
    x = 62,217,423.36/8,862.95
  6. Step 6: Final answer
    x = 7,019.94

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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.