Home / 10,175.55-15,263.34-2,780.76

Finding the Fourth Proportional to 10,175.55, 15,263.34 and 2,780.76

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Solution

The fourth proportional to 10,175.55, 15,263.34 and 2,780.76 is: 4,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,175.55 : 15,263.34 = 2,780.76 : x
  2. Step 2: Convert to fraction form
    10,175.55/15,263.34 = 2,780.76/x
  3. Step 3: Cross multiply
    10,175.55x = 15,263.34 × 2,780.76
  4. Step 4: Simplify right side
    10,175.55x = 42,443,685.34
  5. Step 5: Solve for x
    x = 42,443,685.34/10,175.55
  6. Step 6: Final answer
    x = 4,171.14

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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.