Home / 18,932.18-26,126.43-10,979.03

Finding the Fourth Proportional to 18,932.18, 26,126.43 and 10,979.03

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Solution

The fourth proportional to 18,932.18, 26,126.43 and 10,979.03 is: 15,151.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.18 : 26,126.43 = 10,979.03 : x
  2. Step 2: Convert to fraction form
    18,932.18/26,126.43 = 10,979.03/x
  3. Step 3: Cross multiply
    18,932.18x = 26,126.43 × 10,979.03
  4. Step 4: Simplify right side
    18,932.18x = 286,842,728.13
  5. Step 5: Solve for x
    x = 286,842,728.13/18,932.18
  6. Step 6: Final answer
    x = 15,151.07

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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.