Home / 15,640.28-23,449.44-7,843.76

Finding the Fourth Proportional to 15,640.28, 23,449.44 and 7,843.76

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Solution

The fourth proportional to 15,640.28, 23,449.44 and 7,843.76 is: 11,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.28 : 23,449.44 = 7,843.76 : x
  2. Step 2: Convert to fraction form
    15,640.28/23,449.44 = 7,843.76/x
  3. Step 3: Cross multiply
    15,640.28x = 23,449.44 × 7,843.76
  4. Step 4: Simplify right side
    15,640.28x = 183,931,779.49
  5. Step 5: Solve for x
    x = 183,931,779.49/15,640.28
  6. Step 6: Final answer
    x = 11,760.13

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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.