Home / 10,146.30-15,209.49-4,879.86

Finding the Fourth Proportional to 10,146.30, 15,209.49 and 4,879.86

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Solution

The fourth proportional to 10,146.30, 15,209.49 and 4,879.86 is: 7,315.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.30 : 15,209.49 = 4,879.86 : x
  2. Step 2: Convert to fraction form
    10,146.30/15,209.49 = 4,879.86/x
  3. Step 3: Cross multiply
    10,146.30x = 15,209.49 × 4,879.86
  4. Step 4: Simplify right side
    10,146.30x = 74,220,181.87
  5. Step 5: Solve for x
    x = 74,220,181.87/10,146.30
  6. Step 6: Final answer
    x = 7,315.00

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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.