Home / 18,354.08-27,531.12-5,206.57

Finding the Fourth Proportional to 18,354.08, 27,531.12 and 5,206.57

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Solution

The fourth proportional to 18,354.08, 27,531.12 and 5,206.57 is: 7,809.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.08 : 27,531.12 = 5,206.57 : x
  2. Step 2: Convert to fraction form
    18,354.08/27,531.12 = 5,206.57/x
  3. Step 3: Cross multiply
    18,354.08x = 27,531.12 × 5,206.57
  4. Step 4: Simplify right side
    18,354.08x = 143,342,703.46
  5. Step 5: Solve for x
    x = 143,342,703.46/18,354.08
  6. Step 6: Final answer
    x = 7,809.86

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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.