Home / 8,084.16-11,142.63-6,397.74

Finding the Fourth Proportional to 8,084.16, 11,142.63 and 6,397.74

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Solution

The fourth proportional to 8,084.16, 11,142.63 and 6,397.74 is: 8,818.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,084.16 : 11,142.63 = 6,397.74 : x
  2. Step 2: Convert to fraction form
    8,084.16/11,142.63 = 6,397.74/x
  3. Step 3: Cross multiply
    8,084.16x = 11,142.63 × 6,397.74
  4. Step 4: Simplify right side
    8,084.16x = 71,287,649.66
  5. Step 5: Solve for x
    x = 71,287,649.66/8,084.16
  6. Step 6: Final answer
    x = 8,818.19

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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.