Home / 8,753.40-13,127.70-3,559.80

Finding the Fourth Proportional to 8,753.40, 13,127.70 and 3,559.80

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Solution

The fourth proportional to 8,753.40, 13,127.70 and 3,559.80 is: 5,338.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.40 : 13,127.70 = 3,559.80 : x
  2. Step 2: Convert to fraction form
    8,753.40/13,127.70 = 3,559.80/x
  3. Step 3: Cross multiply
    8,753.40x = 13,127.70 × 3,559.80
  4. Step 4: Simplify right side
    8,753.40x = 46,731,986.46
  5. Step 5: Solve for x
    x = 46,731,986.46/8,753.40
  6. Step 6: Final answer
    x = 5,338.72

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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.