Home / 10,987.98-15,163.44-5,952.21

Finding the Fourth Proportional to 10,987.98, 15,163.44 and 5,952.21

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Solution

The fourth proportional to 10,987.98, 15,163.44 and 5,952.21 is: 8,214.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.98 : 15,163.44 = 5,952.21 : x
  2. Step 2: Convert to fraction form
    10,987.98/15,163.44 = 5,952.21/x
  3. Step 3: Cross multiply
    10,987.98x = 15,163.44 × 5,952.21
  4. Step 4: Simplify right side
    10,987.98x = 90,255,979.20
  5. Step 5: Solve for x
    x = 90,255,979.20/10,987.98
  6. Step 6: Final answer
    x = 8,214.06

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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.