Home / 10,182.08-15,282.72-5,255.20

Finding the Fourth Proportional to 10,182.08, 15,282.72 and 5,255.20

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Solution

The fourth proportional to 10,182.08, 15,282.72 and 5,255.20 is: 7,887.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,182.08 : 15,282.72 = 5,255.20 : x
  2. Step 2: Convert to fraction form
    10,182.08/15,282.72 = 5,255.20/x
  3. Step 3: Cross multiply
    10,182.08x = 15,282.72 × 5,255.20
  4. Step 4: Simplify right side
    10,182.08x = 80,313,750.14
  5. Step 5: Solve for x
    x = 80,313,750.14/10,182.08
  6. Step 6: Final answer
    x = 7,887.75

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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.