Home / 11,655.68-16,081.28-6,619.52

Finding the Fourth Proportional to 11,655.68, 16,081.28 and 6,619.52

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Solution

The fourth proportional to 11,655.68, 16,081.28 and 6,619.52 is: 9,132.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,655.68 : 16,081.28 = 6,619.52 : x
  2. Step 2: Convert to fraction form
    11,655.68/16,081.28 = 6,619.52/x
  3. Step 3: Cross multiply
    11,655.68x = 16,081.28 × 6,619.52
  4. Step 4: Simplify right side
    11,655.68x = 106,450,354.59
  5. Step 5: Solve for x
    x = 106,450,354.59/11,655.68
  6. Step 6: Final answer
    x = 9,132.92

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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.