Home / 11,858.12-16,363.56-7,381.76

Finding the Fourth Proportional to 11,858.12, 16,363.56 and 7,381.76

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Solution

The fourth proportional to 11,858.12, 16,363.56 and 7,381.76 is: 10,186.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,858.12 : 16,363.56 = 7,381.76 : x
  2. Step 2: Convert to fraction form
    11,858.12/16,363.56 = 7,381.76/x
  3. Step 3: Cross multiply
    11,858.12x = 16,363.56 × 7,381.76
  4. Step 4: Simplify right side
    11,858.12x = 120,791,872.67
  5. Step 5: Solve for x
    x = 120,791,872.67/11,858.12
  6. Step 6: Final answer
    x = 10,186.43

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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.