Home / 10,987.30-15,163.41-6,208.12

Finding the Fourth Proportional to 10,987.30, 15,163.41 and 6,208.12

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Solution

The fourth proportional to 10,987.30, 15,163.41 and 6,208.12 is: 8,567.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,987.30 : 15,163.41 = 6,208.12 : x
  2. Step 2: Convert to fraction form
    10,987.30/15,163.41 = 6,208.12/x
  3. Step 3: Cross multiply
    10,987.30x = 15,163.41 × 6,208.12
  4. Step 4: Simplify right side
    10,987.30x = 94,136,268.89
  5. Step 5: Solve for x
    x = 94,136,268.89/10,987.30
  6. Step 6: Final answer
    x = 8,567.73

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Half scale
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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.