Home / 8,085.27-12,127.91-3,689.67

Finding the Fourth Proportional to 8,085.27, 12,127.91 and 3,689.67

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Solution

The fourth proportional to 8,085.27, 12,127.91 and 3,689.67 is: 5,534.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.27 : 12,127.91 = 3,689.67 : x
  2. Step 2: Convert to fraction form
    8,085.27/12,127.91 = 3,689.67/x
  3. Step 3: Cross multiply
    8,085.27x = 12,127.91 × 3,689.67
  4. Step 4: Simplify right side
    8,085.27x = 44,748,033.48
  5. Step 5: Solve for x
    x = 44,748,033.48/8,085.27
  6. Step 6: Final answer
    x = 5,534.51

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Double scale
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Similar ratio
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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.