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Finding the Fourth Proportional to 15,019.47, 20,726.48 and 8,304.93

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Solution

The fourth proportional to 15,019.47, 20,726.48 and 8,304.93 is: 11,460.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.47 : 20,726.48 = 8,304.93 : x
  2. Step 2: Convert to fraction form
    15,019.47/20,726.48 = 8,304.93/x
  3. Step 3: Cross multiply
    15,019.47x = 20,726.48 × 8,304.93
  4. Step 4: Simplify right side
    15,019.47x = 172,131,924.02
  5. Step 5: Solve for x
    x = 172,131,924.02/15,019.47
  6. Step 6: Final answer
    x = 11,460.59

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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.