Home / 8,708.28-13,061.40-3,085.31

Finding the Fourth Proportional to 8,708.28, 13,061.40 and 3,085.31

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Solution

The fourth proportional to 8,708.28, 13,061.40 and 3,085.31 is: 4,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.28 : 13,061.40 = 3,085.31 : x
  2. Step 2: Convert to fraction form
    8,708.28/13,061.40 = 3,085.31/x
  3. Step 3: Cross multiply
    8,708.28x = 13,061.40 × 3,085.31
  4. Step 4: Simplify right side
    8,708.28x = 40,298,433.00
  5. Step 5: Solve for x
    x = 40,298,433.00/8,708.28
  6. Step 6: Final answer
    x = 4,627.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.