Home / 11,156.61-15,396.12-6,120.87

Finding the Fourth Proportional to 11,156.61, 15,396.12 and 6,120.87

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Solution

The fourth proportional to 11,156.61, 15,396.12 and 6,120.87 is: 8,446.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.61 : 15,396.12 = 6,120.87 : x
  2. Step 2: Convert to fraction form
    11,156.61/15,396.12 = 6,120.87/x
  3. Step 3: Cross multiply
    11,156.61x = 15,396.12 × 6,120.87
  4. Step 4: Simplify right side
    11,156.61x = 94,237,591.29
  5. Step 5: Solve for x
    x = 94,237,591.29/11,156.61
  6. Step 6: Final answer
    x = 8,446.79

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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.