Home / 10,109.45-15,166.20-8,477.30

Finding the Fourth Proportional to 10,109.45, 15,166.20 and 8,477.30

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Solution

The fourth proportional to 10,109.45, 15,166.20 and 8,477.30 is: 12,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,109.45 : 15,166.20 = 8,477.30 : x
  2. Step 2: Convert to fraction form
    10,109.45/15,166.20 = 8,477.30/x
  3. Step 3: Cross multiply
    10,109.45x = 15,166.20 × 8,477.30
  4. Step 4: Simplify right side
    10,109.45x = 128,568,427.26
  5. Step 5: Solve for x
    x = 128,568,427.26/10,109.45
  6. Step 6: Final answer
    x = 12,717.65

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Similar ratio
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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.