Home / 11,511.29-15,885.65-6,797.90

Finding the Fourth Proportional to 11,511.29, 15,885.65 and 6,797.90

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Solution

The fourth proportional to 11,511.29, 15,885.65 and 6,797.90 is: 9,381.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,511.29 : 15,885.65 = 6,797.90 : x
  2. Step 2: Convert to fraction form
    11,511.29/15,885.65 = 6,797.90/x
  3. Step 3: Cross multiply
    11,511.29x = 15,885.65 × 6,797.90
  4. Step 4: Simplify right side
    11,511.29x = 107,989,060.14
  5. Step 5: Solve for x
    x = 107,989,060.14/11,511.29
  6. Step 6: Final answer
    x = 9,381.14

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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.