Home / 10,071.92-15,112.20-5,682.80

Finding the Fourth Proportional to 10,071.92, 15,112.20 and 5,682.80

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Solution

The fourth proportional to 10,071.92, 15,112.20 and 5,682.80 is: 8,526.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,071.92 : 15,112.20 = 5,682.80 : x
  2. Step 2: Convert to fraction form
    10,071.92/15,112.20 = 5,682.80/x
  3. Step 3: Cross multiply
    10,071.92x = 15,112.20 × 5,682.80
  4. Step 4: Simplify right side
    10,071.92x = 85,879,610.16
  5. Step 5: Solve for x
    x = 85,879,610.16/10,071.92
  6. Step 6: Final answer
    x = 8,526.64

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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.