Home / 15,567.38-21,482.92-8,493.78

Finding the Fourth Proportional to 15,567.38, 21,482.92 and 8,493.78

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Solution

The fourth proportional to 15,567.38, 21,482.92 and 8,493.78 is: 11,721.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,567.38 : 21,482.92 = 8,493.78 : x
  2. Step 2: Convert to fraction form
    15,567.38/21,482.92 = 8,493.78/x
  3. Step 3: Cross multiply
    15,567.38x = 21,482.92 × 8,493.78
  4. Step 4: Simplify right side
    15,567.38x = 182,471,196.24
  5. Step 5: Solve for x
    x = 182,471,196.24/15,567.38
  6. Step 6: Final answer
    x = 11,721.38

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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.