Home / 15,116.28-20,858.94-9,449.88

Finding the Fourth Proportional to 15,116.28, 20,858.94 and 9,449.88

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Solution

The fourth proportional to 15,116.28, 20,858.94 and 9,449.88 is: 13,039.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,116.28 : 20,858.94 = 9,449.88 : x
  2. Step 2: Convert to fraction form
    15,116.28/20,858.94 = 9,449.88/x
  3. Step 3: Cross multiply
    15,116.28x = 20,858.94 × 9,449.88
  4. Step 4: Simplify right side
    15,116.28x = 197,114,479.93
  5. Step 5: Solve for x
    x = 197,114,479.93/15,116.28
  6. Step 6: Final answer
    x = 13,039.88

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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.