Home / 11,187.24-15,438.72-6,151.20

Finding the Fourth Proportional to 11,187.24, 15,438.72 and 6,151.20

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Solution

The fourth proportional to 11,187.24, 15,438.72 and 6,151.20 is: 8,488.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.24 : 15,438.72 = 6,151.20 : x
  2. Step 2: Convert to fraction form
    11,187.24/15,438.72 = 6,151.20/x
  3. Step 3: Cross multiply
    11,187.24x = 15,438.72 × 6,151.20
  4. Step 4: Simplify right side
    11,187.24x = 94,966,654.46
  5. Step 5: Solve for x
    x = 94,966,654.46/11,187.24
  6. Step 6: Final answer
    x = 8,488.84

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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.