Home / 10,619.19-15,909.75-8,853.39

Finding the Fourth Proportional to 10,619.19, 15,909.75 and 8,853.39

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Solution

The fourth proportional to 10,619.19, 15,909.75 and 8,853.39 is: 13,264.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,619.19 : 15,909.75 = 8,853.39 : x
  2. Step 2: Convert to fraction form
    10,619.19/15,909.75 = 8,853.39/x
  3. Step 3: Cross multiply
    10,619.19x = 15,909.75 × 8,853.39
  4. Step 4: Simplify right side
    10,619.19x = 140,855,221.55
  5. Step 5: Solve for x
    x = 140,855,221.55/10,619.19
  6. Step 6: Final answer
    x = 13,264.22

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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.