Home / 8,739.50-13,098.31-4,358.21

Finding the Fourth Proportional to 8,739.50, 13,098.31 and 4,358.21

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Solution

The fourth proportional to 8,739.50, 13,098.31 and 4,358.21 is: 6,531.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.50 : 13,098.31 = 4,358.21 : x
  2. Step 2: Convert to fraction form
    8,739.50/13,098.31 = 4,358.21/x
  3. Step 3: Cross multiply
    8,739.50x = 13,098.31 × 4,358.21
  4. Step 4: Simplify right side
    8,739.50x = 57,085,109.24
  5. Step 5: Solve for x
    x = 57,085,109.24/8,739.50
  6. Step 6: Final answer
    x = 6,531.85

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1.5x scale

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.