Home / 9,398.28-12,968.92-5,148.40

Finding the Fourth Proportional to 9,398.28, 12,968.92 and 5,148.40

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Solution

The fourth proportional to 9,398.28, 12,968.92 and 5,148.40 is: 7,104.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,398.28 : 12,968.92 = 5,148.40 : x
  2. Step 2: Convert to fraction form
    9,398.28/12,968.92 = 5,148.40/x
  3. Step 3: Cross multiply
    9,398.28x = 12,968.92 × 5,148.40
  4. Step 4: Simplify right side
    9,398.28x = 66,769,187.73
  5. Step 5: Solve for x
    x = 66,769,187.73/9,398.28
  6. Step 6: Final answer
    x = 7,104.41

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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.