Home / 11,172.68-15,418.72-6,695.52

Finding the Fourth Proportional to 11,172.68, 15,418.72 and 6,695.52

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Solution

The fourth proportional to 11,172.68, 15,418.72 and 6,695.52 is: 9,240.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,172.68 : 15,418.72 = 6,695.52 : x
  2. Step 2: Convert to fraction form
    11,172.68/15,418.72 = 6,695.52/x
  3. Step 3: Cross multiply
    11,172.68x = 15,418.72 × 6,695.52
  4. Step 4: Simplify right side
    11,172.68x = 103,236,348.13
  5. Step 5: Solve for x
    x = 103,236,348.13/11,172.68
  6. Step 6: Final answer
    x = 9,240.07

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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.