Home / 7,417.20-10,233.63-4,272.78

Finding the Fourth Proportional to 7,417.20, 10,233.63 and 4,272.78

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Solution

The fourth proportional to 7,417.20, 10,233.63 and 4,272.78 is: 5,895.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,417.20 : 10,233.63 = 4,272.78 : x
  2. Step 2: Convert to fraction form
    7,417.20/10,233.63 = 4,272.78/x
  3. Step 3: Cross multiply
    7,417.20x = 10,233.63 × 4,272.78
  4. Step 4: Simplify right side
    7,417.20x = 43,726,049.59
  5. Step 5: Solve for x
    x = 43,726,049.59/7,417.20
  6. Step 6: Final answer
    x = 5,895.22

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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.