Home / 10,787.76-14,885.37-6,811.02

Finding the Fourth Proportional to 10,787.76, 14,885.37 and 6,811.02

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Solution

The fourth proportional to 10,787.76, 14,885.37 and 6,811.02 is: 9,398.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,787.76 : 14,885.37 = 6,811.02 : x
  2. Step 2: Convert to fraction form
    10,787.76/14,885.37 = 6,811.02/x
  3. Step 3: Cross multiply
    10,787.76x = 14,885.37 × 6,811.02
  4. Step 4: Simplify right side
    10,787.76x = 101,384,552.78
  5. Step 5: Solve for x
    x = 101,384,552.78/10,787.76
  6. Step 6: Final answer
    x = 9,398.11

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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.