Home / 15,917.28-23,867.68-7,144.64

Finding the Fourth Proportional to 15,917.28, 23,867.68 and 7,144.64

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Solution

The fourth proportional to 15,917.28, 23,867.68 and 7,144.64 is: 10,713.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,917.28 : 23,867.68 = 7,144.64 : x
  2. Step 2: Convert to fraction form
    15,917.28/23,867.68 = 7,144.64/x
  3. Step 3: Cross multiply
    15,917.28x = 23,867.68 × 7,144.64
  4. Step 4: Simplify right side
    15,917.28x = 170,525,981.24
  5. Step 5: Solve for x
    x = 170,525,981.24/15,917.28
  6. Step 6: Final answer
    x = 10,713.26

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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.