Home / 15,917.78-23,868.43-7,145.14

Finding the Fourth Proportional to 15,917.78, 23,868.43 and 7,145.14

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Solution

The fourth proportional to 15,917.78, 23,868.43 and 7,145.14 is: 10,714.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.78 : 23,868.43 = 7,145.14 : x
  2. Step 2: Convert to fraction form
    15,917.78/23,868.43 = 7,145.14/x
  3. Step 3: Cross multiply
    15,917.78x = 23,868.43 × 7,145.14
  4. Step 4: Simplify right side
    15,917.78x = 170,543,273.93
  5. Step 5: Solve for x
    x = 170,543,273.93/15,917.78
  6. Step 6: Final answer
    x = 10,714.01

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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.