Home / 9,167.40-12,649.38-5,391.33

Finding the Fourth Proportional to 9,167.40, 12,649.38 and 5,391.33

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Solution

The fourth proportional to 9,167.40, 12,649.38 and 5,391.33 is: 7,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,167.40 : 12,649.38 = 5,391.33 : x
  2. Step 2: Convert to fraction form
    9,167.40/12,649.38 = 5,391.33/x
  3. Step 3: Cross multiply
    9,167.40x = 12,649.38 × 5,391.33
  4. Step 4: Simplify right side
    9,167.40x = 68,196,981.88
  5. Step 5: Solve for x
    x = 68,196,981.88/9,167.40
  6. Step 6: Final answer
    x = 7,439.08

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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.