Home / 10,109.22-15,177.84-5,182.26

Finding the Fourth Proportional to 10,109.22, 15,177.84 and 5,182.26

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Solution

The fourth proportional to 10,109.22, 15,177.84 and 5,182.26 is: 7,780.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.22 : 15,177.84 = 5,182.26 : x
  2. Step 2: Convert to fraction form
    10,109.22/15,177.84 = 5,182.26/x
  3. Step 3: Cross multiply
    10,109.22x = 15,177.84 × 5,182.26
  4. Step 4: Simplify right side
    10,109.22x = 78,655,513.12
  5. Step 5: Solve for x
    x = 78,655,513.12/10,109.22
  6. Step 6: Final answer
    x = 7,780.57

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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.