Home / 10,115.56-15,148.72-6,987.24

Finding the Fourth Proportional to 10,115.56, 15,148.72 and 6,987.24

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Solution

The fourth proportional to 10,115.56, 15,148.72 and 6,987.24 is: 10,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.56 : 15,148.72 = 6,987.24 : x
  2. Step 2: Convert to fraction form
    10,115.56/15,148.72 = 6,987.24/x
  3. Step 3: Cross multiply
    10,115.56x = 15,148.72 × 6,987.24
  4. Step 4: Simplify right side
    10,115.56x = 105,847,742.33
  5. Step 5: Solve for x
    x = 105,847,742.33/10,115.56
  6. Step 6: Final answer
    x = 10,463.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.