Home / 17,145.46-25,698.75-7,278.58

Finding the Fourth Proportional to 17,145.46, 25,698.75 and 7,278.58

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Solution

The fourth proportional to 17,145.46, 25,698.75 and 7,278.58 is: 10,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,145.46 : 25,698.75 = 7,278.58 : x
  2. Step 2: Convert to fraction form
    17,145.46/25,698.75 = 7,278.58/x
  3. Step 3: Cross multiply
    17,145.46x = 25,698.75 × 7,278.58
  4. Step 4: Simplify right side
    17,145.46x = 187,050,407.78
  5. Step 5: Solve for x
    x = 187,050,407.78/17,145.46
  6. Step 6: Final answer
    x = 10,909.62

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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.