Home / 15,409.38-23,114.22-4,879.20

Finding the Fourth Proportional to 15,409.38, 23,114.22 and 4,879.20

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Solution

The fourth proportional to 15,409.38, 23,114.22 and 4,879.20 is: 7,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,409.38 : 23,114.22 = 4,879.20 : x
  2. Step 2: Convert to fraction form
    15,409.38/23,114.22 = 4,879.20/x
  3. Step 3: Cross multiply
    15,409.38x = 23,114.22 × 4,879.20
  4. Step 4: Simplify right side
    15,409.38x = 112,779,004.91
  5. Step 5: Solve for x
    x = 112,779,004.91/15,409.38
  6. Step 6: Final answer
    x = 7,318.85

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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.