Home / 11,318.11-15,608.14-6,780.06

Finding the Fourth Proportional to 11,318.11, 15,608.14 and 6,780.06

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Solution

The fourth proportional to 11,318.11, 15,608.14 and 6,780.06 is: 9,349.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,318.11 : 15,608.14 = 6,780.06 : x
  2. Step 2: Convert to fraction form
    11,318.11/15,608.14 = 6,780.06/x
  3. Step 3: Cross multiply
    11,318.11x = 15,608.14 × 6,780.06
  4. Step 4: Simplify right side
    11,318.11x = 105,824,125.69
  5. Step 5: Solve for x
    x = 105,824,125.69/11,318.11
  6. Step 6: Final answer
    x = 9,349.98

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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.