Home / 15,107.06-20,850-10,872.14

Finding the Fourth Proportional to 15,107.06, 20,850 and 10,872.14

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Solution

The fourth proportional to 15,107.06, 20,850 and 10,872.14 is: 15,005.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.06 : 20,850 = 10,872.14 : x
  2. Step 2: Convert to fraction form
    15,107.06/20,850 = 10,872.14/x
  3. Step 3: Cross multiply
    15,107.06x = 20,850 × 10,872.14
  4. Step 4: Simplify right side
    15,107.06x = 226,684,119
  5. Step 5: Solve for x
    x = 226,684,119/15,107.06
  6. Step 6: Final answer
    x = 15,005.18

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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.