Home / 10,081.68-15,122.50-2,686.16

Finding the Fourth Proportional to 10,081.68, 15,122.50 and 2,686.16

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Solution

The fourth proportional to 10,081.68, 15,122.50 and 2,686.16 is: 4,029.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,081.68 : 15,122.50 = 2,686.16 : x
  2. Step 2: Convert to fraction form
    10,081.68/15,122.50 = 2,686.16/x
  3. Step 3: Cross multiply
    10,081.68x = 15,122.50 × 2,686.16
  4. Step 4: Simplify right side
    10,081.68x = 40,621,485.69
  5. Step 5: Solve for x
    x = 40,621,485.69/10,081.68
  6. Step 6: Final answer
    x = 4,029.24

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Double scale
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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.