Home / 11,639.76-17,459.18-2,874.45

Finding the Fourth Proportional to 11,639.76, 17,459.18 and 2,874.45

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Solution

The fourth proportional to 11,639.76, 17,459.18 and 2,874.45 is: 4,311.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.76 : 17,459.18 = 2,874.45 : x
  2. Step 2: Convert to fraction form
    11,639.76/17,459.18 = 2,874.45/x
  3. Step 3: Cross multiply
    11,639.76x = 17,459.18 × 2,874.45
  4. Step 4: Simplify right side
    11,639.76x = 50,185,438.28
  5. Step 5: Solve for x
    x = 50,185,438.28/11,639.76
  6. Step 6: Final answer
    x = 4,311.55

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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.