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Finding the Fourth Proportional to 15,017.84, 20,726.12 and 8,303.97

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Solution

The fourth proportional to 15,017.84, 20,726.12 and 8,303.97 is: 11,460.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,017.84 : 20,726.12 = 8,303.97 : x
  2. Step 2: Convert to fraction form
    15,017.84/20,726.12 = 8,303.97/x
  3. Step 3: Cross multiply
    15,017.84x = 20,726.12 × 8,303.97
  4. Step 4: Simplify right side
    15,017.84x = 172,109,099.46
  5. Step 5: Solve for x
    x = 172,109,099.46/15,017.84
  6. Step 6: Final answer
    x = 11,460.31

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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.