Home / 9,708.48-13,398.84-5,517.36

Finding the Fourth Proportional to 9,708.48, 13,398.84 and 5,517.36

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Solution

The fourth proportional to 9,708.48, 13,398.84 and 5,517.36 is: 7,614.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,708.48 : 13,398.84 = 5,517.36 : x
  2. Step 2: Convert to fraction form
    9,708.48/13,398.84 = 5,517.36/x
  3. Step 3: Cross multiply
    9,708.48x = 13,398.84 × 5,517.36
  4. Step 4: Simplify right side
    9,708.48x = 73,926,223.86
  5. Step 5: Solve for x
    x = 73,926,223.86/9,708.48
  6. Step 6: Final answer
    x = 7,614.60

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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.