Home / 10,175.42-15,261.55-2,780.46

Finding the Fourth Proportional to 10,175.42, 15,261.55 and 2,780.46

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Solution

The fourth proportional to 10,175.42, 15,261.55 and 2,780.46 is: 4,170.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,175.42 : 15,261.55 = 2,780.46 : x
  2. Step 2: Convert to fraction form
    10,175.42/15,261.55 = 2,780.46/x
  3. Step 3: Cross multiply
    10,175.42x = 15,261.55 × 2,780.46
  4. Step 4: Simplify right side
    10,175.42x = 42,434,122.36
  5. Step 5: Solve for x
    x = 42,434,122.36/10,175.42
  6. Step 6: Final answer
    x = 4,170.26

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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.