Home / 18,456.79-27,688.82-6,770.11

Finding the Fourth Proportional to 18,456.79, 27,688.82 and 6,770.11

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Solution

The fourth proportional to 18,456.79, 27,688.82 and 6,770.11 is: 10,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,456.79 : 27,688.82 = 6,770.11 : x
  2. Step 2: Convert to fraction form
    18,456.79/27,688.82 = 6,770.11/x
  3. Step 3: Cross multiply
    18,456.79x = 27,688.82 × 6,770.11
  4. Step 4: Simplify right side
    18,456.79x = 187,456,357.17
  5. Step 5: Solve for x
    x = 187,456,357.17/18,456.79
  6. Step 6: Final answer
    x = 10,156.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.