Home / 10,750.20-16,118.82-4,911.72

Finding the Fourth Proportional to 10,750.20, 16,118.82 and 4,911.72

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Solution

The fourth proportional to 10,750.20, 16,118.82 and 4,911.72 is: 7,364.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,750.20 : 16,118.82 = 4,911.72 : x
  2. Step 2: Convert to fraction form
    10,750.20/16,118.82 = 4,911.72/x
  3. Step 3: Cross multiply
    10,750.20x = 16,118.82 × 4,911.72
  4. Step 4: Simplify right side
    10,750.20x = 79,171,130.57
  5. Step 5: Solve for x
    x = 79,171,130.57/10,750.20
  6. Step 6: Final answer
    x = 7,364.62

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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.