Home / 10,175.91-15,263.71-2,780.36

Finding the Fourth Proportional to 10,175.91, 15,263.71 and 2,780.36

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Solution

The fourth proportional to 10,175.91, 15,263.71 and 2,780.36 is: 4,170.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,175.91 : 15,263.71 = 2,780.36 : x
  2. Step 2: Convert to fraction form
    10,175.91/15,263.71 = 2,780.36/x
  3. Step 3: Cross multiply
    10,175.91x = 15,263.71 × 2,780.36
  4. Step 4: Simplify right side
    10,175.91x = 42,438,608.74
  5. Step 5: Solve for x
    x = 42,438,608.74/10,175.91
  6. Step 6: Final answer
    x = 4,170.50

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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.