Home / 11,265.98-15,529.11-8,872.16

Finding the Fourth Proportional to 11,265.98, 15,529.11 and 8,872.16

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Solution

The fourth proportional to 11,265.98, 15,529.11 and 8,872.16 is: 12,229.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,265.98 : 15,529.11 = 8,872.16 : x
  2. Step 2: Convert to fraction form
    11,265.98/15,529.11 = 8,872.16/x
  3. Step 3: Cross multiply
    11,265.98x = 15,529.11 × 8,872.16
  4. Step 4: Simplify right side
    11,265.98x = 137,776,670.93
  5. Step 5: Solve for x
    x = 137,776,670.93/11,265.98
  6. Step 6: Final answer
    x = 12,229.45

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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.