Home / 11,328.15-16,986.78-4,752.57

Finding the Fourth Proportional to 11,328.15, 16,986.78 and 4,752.57

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Solution

The fourth proportional to 11,328.15, 16,986.78 and 4,752.57 is: 7,126.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.15 : 16,986.78 = 4,752.57 : x
  2. Step 2: Convert to fraction form
    11,328.15/16,986.78 = 4,752.57/x
  3. Step 3: Cross multiply
    11,328.15x = 16,986.78 × 4,752.57
  4. Step 4: Simplify right side
    11,328.15x = 80,730,861.02
  5. Step 5: Solve for x
    x = 80,730,861.02/11,328.15
  6. Step 6: Final answer
    x = 7,126.57

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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.