Home / 11,872.85-16,459.45-11,240.84

Finding the Fourth Proportional to 11,872.85, 16,459.45 and 11,240.84

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Solution

The fourth proportional to 11,872.85, 16,459.45 and 11,240.84 is: 15,583.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,872.85 : 16,459.45 = 11,240.84 : x
  2. Step 2: Convert to fraction form
    11,872.85/16,459.45 = 11,240.84/x
  3. Step 3: Cross multiply
    11,872.85x = 16,459.45 × 11,240.84
  4. Step 4: Simplify right side
    11,872.85x = 185,018,056.98
  5. Step 5: Solve for x
    x = 185,018,056.98/11,872.85
  6. Step 6: Final answer
    x = 15,583.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.