Home / 18,932.11-26,126.42-10,979.06

Finding the Fourth Proportional to 18,932.11, 26,126.42 and 10,979.06

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Solution

The fourth proportional to 18,932.11, 26,126.42 and 10,979.06 is: 15,151.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.11 : 26,126.42 = 10,979.06 : x
  2. Step 2: Convert to fraction form
    18,932.11/26,126.42 = 10,979.06/x
  3. Step 3: Cross multiply
    18,932.11x = 26,126.42 × 10,979.06
  4. Step 4: Simplify right side
    18,932.11x = 286,843,347.24
  5. Step 5: Solve for x
    x = 286,843,347.24/18,932.11
  6. Step 6: Final answer
    x = 15,151.16

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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.