Home / 9,540.28-13,165.60-5,291.20

Finding the Fourth Proportional to 9,540.28, 13,165.60 and 5,291.20

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Solution

The fourth proportional to 9,540.28, 13,165.60 and 5,291.20 is: 7,301.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,540.28 : 13,165.60 = 5,291.20 : x
  2. Step 2: Convert to fraction form
    9,540.28/13,165.60 = 5,291.20/x
  3. Step 3: Cross multiply
    9,540.28x = 13,165.60 × 5,291.20
  4. Step 4: Simplify right side
    9,540.28x = 69,661,831.20
  5. Step 5: Solve for x
    x = 69,661,831.20/9,540.28
  6. Step 6: Final answer
    x = 7,301.86

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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.