Home / 15,341.39-21,172.15-11,557.88

Finding the Fourth Proportional to 15,341.39, 21,172.15 and 11,557.88

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Solution

The fourth proportional to 15,341.39, 21,172.15 and 11,557.88 is: 15,950.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,341.39 : 21,172.15 = 11,557.88 : x
  2. Step 2: Convert to fraction form
    15,341.39/21,172.15 = 11,557.88/x
  3. Step 3: Cross multiply
    15,341.39x = 21,172.15 × 11,557.88
  4. Step 4: Simplify right side
    15,341.39x = 244,705,169.04
  5. Step 5: Solve for x
    x = 244,705,169.04/15,341.39
  6. Step 6: Final answer
    x = 15,950.65

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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.