Home / 9,708.78-13,398.21-5,517.06

Finding the Fourth Proportional to 9,708.78, 13,398.21 and 5,517.06

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Solution

The fourth proportional to 9,708.78, 13,398.21 and 5,517.06 is: 7,613.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,708.78 : 13,398.21 = 5,517.06 : x
  2. Step 2: Convert to fraction form
    9,708.78/13,398.21 = 5,517.06/x
  3. Step 3: Cross multiply
    9,708.78x = 13,398.21 × 5,517.06
  4. Step 4: Simplify right side
    9,708.78x = 73,918,728.46
  5. Step 5: Solve for x
    x = 73,918,728.46/9,708.78
  6. Step 6: Final answer
    x = 7,613.60

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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.