Home / 15,744.04-21,726.84-8,670.96

Finding the Fourth Proportional to 15,744.04, 21,726.84 and 8,670.96

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Solution

The fourth proportional to 15,744.04, 21,726.84 and 8,670.96 is: 11,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,744.04 : 21,726.84 = 8,670.96 : x
  2. Step 2: Convert to fraction form
    15,744.04/21,726.84 = 8,670.96/x
  3. Step 3: Cross multiply
    15,744.04x = 21,726.84 × 8,670.96
  4. Step 4: Simplify right side
    15,744.04x = 188,392,560.57
  5. Step 5: Solve for x
    x = 188,392,560.57/15,744.04
  6. Step 6: Final answer
    x = 11,965.96

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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.