Home / 18,579.28-27,869.46-8,723.20

Finding the Fourth Proportional to 18,579.28, 27,869.46 and 8,723.20

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Solution

The fourth proportional to 18,579.28, 27,869.46 and 8,723.20 is: 13,085.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579.28 : 27,869.46 = 8,723.20 : x
  2. Step 2: Convert to fraction form
    18,579.28/27,869.46 = 8,723.20/x
  3. Step 3: Cross multiply
    18,579.28x = 27,869.46 × 8,723.20
  4. Step 4: Simplify right side
    18,579.28x = 243,110,873.47
  5. Step 5: Solve for x
    x = 243,110,873.47/18,579.28
  6. Step 6: Final answer
    x = 13,085.05

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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.