Home / 10,987.44-15,167.16-7,635.12

Finding the Fourth Proportional to 10,987.44, 15,167.16 and 7,635.12

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Solution

The fourth proportional to 10,987.44, 15,167.16 and 7,635.12 is: 10,539.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.44 : 15,167.16 = 7,635.12 : x
  2. Step 2: Convert to fraction form
    10,987.44/15,167.16 = 7,635.12/x
  3. Step 3: Cross multiply
    10,987.44x = 15,167.16 × 7,635.12
  4. Step 4: Simplify right side
    10,987.44x = 115,803,086.66
  5. Step 5: Solve for x
    x = 115,803,086.66/10,987.44
  6. Step 6: Final answer
    x = 10,539.59

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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.