Home / 18,428.16-27,642.28-11,005.94

Finding the Fourth Proportional to 18,428.16, 27,642.28 and 11,005.94

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Solution

The fourth proportional to 18,428.16, 27,642.28 and 11,005.94 is: 16,508.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428.16 : 27,642.28 = 11,005.94 : x
  2. Step 2: Convert to fraction form
    18,428.16/27,642.28 = 11,005.94/x
  3. Step 3: Cross multiply
    18,428.16x = 27,642.28 × 11,005.94
  4. Step 4: Simplify right side
    18,428.16x = 304,229,275.14
  5. Step 5: Solve for x
    x = 304,229,275.14/18,428.16
  6. Step 6: Final answer
    x = 16,508.93

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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.