Home / 10,130.80-15,196.20-8,745.70

Finding the Fourth Proportional to 10,130.80, 15,196.20 and 8,745.70

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Solution

The fourth proportional to 10,130.80, 15,196.20 and 8,745.70 is: 13,118.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.80 : 15,196.20 = 8,745.70 : x
  2. Step 2: Convert to fraction form
    10,130.80/15,196.20 = 8,745.70/x
  3. Step 3: Cross multiply
    10,130.80x = 15,196.20 × 8,745.70
  4. Step 4: Simplify right side
    10,130.80x = 132,901,406.34
  5. Step 5: Solve for x
    x = 132,901,406.34/10,130.80
  6. Step 6: Final answer
    x = 13,118.55

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Double scale
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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.