Home / 10,091.08-15,128.10-4,823.20

Finding the Fourth Proportional to 10,091.08, 15,128.10 and 4,823.20

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Solution

The fourth proportional to 10,091.08, 15,128.10 and 4,823.20 is: 7,230.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,091.08 : 15,128.10 = 4,823.20 : x
  2. Step 2: Convert to fraction form
    10,091.08/15,128.10 = 4,823.20/x
  3. Step 3: Cross multiply
    10,091.08x = 15,128.10 × 4,823.20
  4. Step 4: Simplify right side
    10,091.08x = 72,965,851.92
  5. Step 5: Solve for x
    x = 72,965,851.92/10,091.08
  6. Step 6: Final answer
    x = 7,230.73

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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.