Home / 7,114.47-9,818.10-4,131.96

Finding the Fourth Proportional to 7,114.47, 9,818.10 and 4,131.96

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Solution

The fourth proportional to 7,114.47, 9,818.10 and 4,131.96 is: 5,702.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,114.47 : 9,818.10 = 4,131.96 : x
  2. Step 2: Convert to fraction form
    7,114.47/9,818.10 = 4,131.96/x
  3. Step 3: Cross multiply
    7,114.47x = 9,818.10 × 4,131.96
  4. Step 4: Simplify right side
    7,114.47x = 40,567,996.48
  5. Step 5: Solve for x
    x = 40,567,996.48/7,114.47
  6. Step 6: Final answer
    x = 5,702.18

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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.