Home / 7,116.19-9,822.60-4,131.43

Finding the Fourth Proportional to 7,116.19, 9,822.60 and 4,131.43

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Solution

The fourth proportional to 7,116.19, 9,822.60 and 4,131.43 is: 5,702.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.19 : 9,822.60 = 4,131.43 : x
  2. Step 2: Convert to fraction form
    7,116.19/9,822.60 = 4,131.43/x
  3. Step 3: Cross multiply
    7,116.19x = 9,822.60 × 4,131.43
  4. Step 4: Simplify right side
    7,116.19x = 40,581,359.76
  5. Step 5: Solve for x
    x = 40,581,359.76/7,116.19
  6. Step 6: Final answer
    x = 5,702.68

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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.