Home / 10,756.18-16,143.99-4,520.80

Finding the Fourth Proportional to 10,756.18, 16,143.99 and 4,520.80

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Solution

The fourth proportional to 10,756.18, 16,143.99 and 4,520.80 is: 6,785.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,756.18 : 16,143.99 = 4,520.80 : x
  2. Step 2: Convert to fraction form
    10,756.18/16,143.99 = 4,520.80/x
  3. Step 3: Cross multiply
    10,756.18x = 16,143.99 × 4,520.80
  4. Step 4: Simplify right side
    10,756.18x = 72,983,709.63
  5. Step 5: Solve for x
    x = 72,983,709.63/10,756.18
  6. Step 6: Final answer
    x = 6,785.28

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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.