Home / 10,154.64-15,231.84-2,759.82

Finding the Fourth Proportional to 10,154.64, 15,231.84 and 2,759.82

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Solution

The fourth proportional to 10,154.64, 15,231.84 and 2,759.82 is: 4,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.64 : 15,231.84 = 2,759.82 : x
  2. Step 2: Convert to fraction form
    10,154.64/15,231.84 = 2,759.82/x
  3. Step 3: Cross multiply
    10,154.64x = 15,231.84 × 2,759.82
  4. Step 4: Simplify right side
    10,154.64x = 42,037,136.67
  5. Step 5: Solve for x
    x = 42,037,136.67/10,154.64
  6. Step 6: Final answer
    x = 4,139.70

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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.