Home / 8,739.90-13,113.09-3,549.42

Finding the Fourth Proportional to 8,739.90, 13,113.09 and 3,549.42

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Solution

The fourth proportional to 8,739.90, 13,113.09 and 3,549.42 is: 5,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.90 : 13,113.09 = 3,549.42 : x
  2. Step 2: Convert to fraction form
    8,739.90/13,113.09 = 3,549.42/x
  3. Step 3: Cross multiply
    8,739.90x = 13,113.09 × 3,549.42
  4. Step 4: Simplify right side
    8,739.90x = 46,543,863.91
  5. Step 5: Solve for x
    x = 46,543,863.91/8,739.90
  6. Step 6: Final answer
    x = 5,325.45

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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.