Home / 15,019.67-20,726.30-8,304.89

Finding the Fourth Proportional to 15,019.67, 20,726.30 and 8,304.89

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Solution

The fourth proportional to 15,019.67, 20,726.30 and 8,304.89 is: 11,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.67 : 20,726.30 = 8,304.89 : x
  2. Step 2: Convert to fraction form
    15,019.67/20,726.30 = 8,304.89/x
  3. Step 3: Cross multiply
    15,019.67x = 20,726.30 × 8,304.89
  4. Step 4: Simplify right side
    15,019.67x = 172,129,537.98
  5. Step 5: Solve for x
    x = 172,129,537.98/15,019.67
  6. Step 6: Final answer
    x = 11,460.28

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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.