Home / 11,187.17-15,438.29-6,151.47

Finding the Fourth Proportional to 11,187.17, 15,438.29 and 6,151.47

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Solution

The fourth proportional to 11,187.17, 15,438.29 and 6,151.47 is: 8,489.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.17 : 15,438.29 = 6,151.47 : x
  2. Step 2: Convert to fraction form
    11,187.17/15,438.29 = 6,151.47/x
  3. Step 3: Cross multiply
    11,187.17x = 15,438.29 × 6,151.47
  4. Step 4: Simplify right side
    11,187.17x = 94,968,147.03
  5. Step 5: Solve for x
    x = 94,968,147.03/11,187.17
  6. Step 6: Final answer
    x = 8,489.03

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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.