Home / 7,615.32-11,395.29-6,286.71

Finding the Fourth Proportional to 7,615.32, 11,395.29 and 6,286.71

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Solution

The fourth proportional to 7,615.32, 11,395.29 and 6,286.71 is: 9,407.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.32 : 11,395.29 = 6,286.71 : x
  2. Step 2: Convert to fraction form
    7,615.32/11,395.29 = 6,286.71/x
  3. Step 3: Cross multiply
    7,615.32x = 11,395.29 × 6,286.71
  4. Step 4: Simplify right side
    7,615.32x = 71,638,949.90
  5. Step 5: Solve for x
    x = 71,638,949.90/7,615.32
  6. Step 6: Final answer
    x = 9,407.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.