Home / 10,872.29-15,003.75-6,156.57

Finding the Fourth Proportional to 10,872.29, 15,003.75 and 6,156.57

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Solution

The fourth proportional to 10,872.29, 15,003.75 and 6,156.57 is: 8,496.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,872.29 : 15,003.75 = 6,156.57 : x
  2. Step 2: Convert to fraction form
    10,872.29/15,003.75 = 6,156.57/x
  3. Step 3: Cross multiply
    10,872.29x = 15,003.75 × 6,156.57
  4. Step 4: Simplify right side
    10,872.29x = 92,371,637.14
  5. Step 5: Solve for x
    x = 92,371,637.14/10,872.29
  6. Step 6: Final answer
    x = 8,496.06

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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.