Home / 18,646.20-27,921.57-10,316.97

Finding the Fourth Proportional to 18,646.20, 27,921.57 and 10,316.97

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Solution

The fourth proportional to 18,646.20, 27,921.57 and 10,316.97 is: 15,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,646.20 : 27,921.57 = 10,316.97 : x
  2. Step 2: Convert to fraction form
    18,646.20/27,921.57 = 10,316.97/x
  3. Step 3: Cross multiply
    18,646.20x = 27,921.57 × 10,316.97
  4. Step 4: Simplify right side
    18,646.20x = 288,066,000.04
  5. Step 5: Solve for x
    x = 288,066,000.04/18,646.20
  6. Step 6: Final answer
    x = 15,449.05

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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.