Home / 11,311.57-15,609.95-6,276.55

Finding the Fourth Proportional to 11,311.57, 15,609.95 and 6,276.55

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Solution

The fourth proportional to 11,311.57, 15,609.95 and 6,276.55 is: 8,661.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,311.57 : 15,609.95 = 6,276.55 : x
  2. Step 2: Convert to fraction form
    11,311.57/15,609.95 = 6,276.55/x
  3. Step 3: Cross multiply
    11,311.57x = 15,609.95 × 6,276.55
  4. Step 4: Simplify right side
    11,311.57x = 97,976,631.67
  5. Step 5: Solve for x
    x = 97,976,631.67/11,311.57
  6. Step 6: Final answer
    x = 8,661.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.