Home / 9,398.11-12,969.20-5,148.97

Finding the Fourth Proportional to 9,398.11, 12,969.20 and 5,148.97

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Solution

The fourth proportional to 9,398.11, 12,969.20 and 5,148.97 is: 7,105.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,398.11 : 12,969.20 = 5,148.97 : x
  2. Step 2: Convert to fraction form
    9,398.11/12,969.20 = 5,148.97/x
  3. Step 3: Cross multiply
    9,398.11x = 12,969.20 × 5,148.97
  4. Step 4: Simplify right side
    9,398.11x = 66,777,931.13
  5. Step 5: Solve for x
    x = 66,777,931.13/9,398.11
  6. Step 6: Final answer
    x = 7,105.46

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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.