Home / 10,987.65-15,162.75-5,951.84

Finding the Fourth Proportional to 10,987.65, 15,162.75 and 5,951.84

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Solution

The fourth proportional to 10,987.65, 15,162.75 and 5,951.84 is: 8,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.65 : 15,162.75 = 5,951.84 : x
  2. Step 2: Convert to fraction form
    10,987.65/15,162.75 = 5,951.84/x
  3. Step 3: Cross multiply
    10,987.65x = 15,162.75 × 5,951.84
  4. Step 4: Simplify right side
    10,987.65x = 90,246,186.15
  5. Step 5: Solve for x
    x = 90,246,186.15/10,987.65
  6. Step 6: Final answer
    x = 8,213.42

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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.