Home / 8,314.34-11,475.20-7,940.66

Finding the Fourth Proportional to 8,314.34, 11,475.20 and 7,940.66

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Solution

The fourth proportional to 8,314.34, 11,475.20 and 7,940.66 is: 10,959.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,314.34 : 11,475.20 = 7,940.66 : x
  2. Step 2: Convert to fraction form
    8,314.34/11,475.20 = 7,940.66/x
  3. Step 3: Cross multiply
    8,314.34x = 11,475.20 × 7,940.66
  4. Step 4: Simplify right side
    8,314.34x = 91,120,564.55
  5. Step 5: Solve for x
    x = 91,120,564.55/8,314.34
  6. Step 6: Final answer
    x = 10,959.45

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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.