Home / 11,150.37-15,387.80-6,304.70

Finding the Fourth Proportional to 11,150.37, 15,387.80 and 6,304.70

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Solution

The fourth proportional to 11,150.37, 15,387.80 and 6,304.70 is: 8,700.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.37 : 15,387.80 = 6,304.70 : x
  2. Step 2: Convert to fraction form
    11,150.37/15,387.80 = 6,304.70/x
  3. Step 3: Cross multiply
    11,150.37x = 15,387.80 × 6,304.70
  4. Step 4: Simplify right side
    11,150.37x = 97,015,469.61
  5. Step 5: Solve for x
    x = 97,015,469.61/11,150.37
  6. Step 6: Final answer
    x = 8,700.65

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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.