Home / 10,255.08-15,387.44-5,322.04

Finding the Fourth Proportional to 10,255.08, 15,387.44 and 5,322.04

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Solution

The fourth proportional to 10,255.08, 15,387.44 and 5,322.04 is: 7,985.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255.08 : 15,387.44 = 5,322.04 : x
  2. Step 2: Convert to fraction form
    10,255.08/15,387.44 = 5,322.04/x
  3. Step 3: Cross multiply
    10,255.08x = 15,387.44 × 5,322.04
  4. Step 4: Simplify right side
    10,255.08x = 81,892,571.18
  5. Step 5: Solve for x
    x = 81,892,571.18/10,255.08
  6. Step 6: Final answer
    x = 7,985.56

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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.