Home / 11,463.18-15,820.50-6,428.76

Finding the Fourth Proportional to 11,463.18, 15,820.50 and 6,428.76

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Solution

The fourth proportional to 11,463.18, 15,820.50 and 6,428.76 is: 8,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,463.18 : 15,820.50 = 6,428.76 : x
  2. Step 2: Convert to fraction form
    11,463.18/15,820.50 = 6,428.76/x
  3. Step 3: Cross multiply
    11,463.18x = 15,820.50 × 6,428.76
  4. Step 4: Simplify right side
    11,463.18x = 101,706,197.58
  5. Step 5: Solve for x
    x = 101,706,197.58/11,463.18
  6. Step 6: Final answer
    x = 8,872.42

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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.