Home / 15,008.12-20,691.96-10,284.20

Finding the Fourth Proportional to 15,008.12, 20,691.96 and 10,284.20

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Solution

The fourth proportional to 15,008.12, 20,691.96 and 10,284.20 is: 14,179.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.12 : 20,691.96 = 10,284.20 : x
  2. Step 2: Convert to fraction form
    15,008.12/20,691.96 = 10,284.20/x
  3. Step 3: Cross multiply
    15,008.12x = 20,691.96 × 10,284.20
  4. Step 4: Simplify right side
    15,008.12x = 212,800,255.03
  5. Step 5: Solve for x
    x = 212,800,255.03/15,008.12
  6. Step 6: Final answer
    x = 14,179.01

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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.