Home / 8,211.13-12,316.69-2,055.13

Finding the Fourth Proportional to 8,211.13, 12,316.69 and 2,055.13

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Solution

The fourth proportional to 8,211.13, 12,316.69 and 2,055.13 is: 3,082.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,211.13 : 12,316.69 = 2,055.13 : x
  2. Step 2: Convert to fraction form
    8,211.13/12,316.69 = 2,055.13/x
  3. Step 3: Cross multiply
    8,211.13x = 12,316.69 × 2,055.13
  4. Step 4: Simplify right side
    8,211.13x = 25,312,399.12
  5. Step 5: Solve for x
    x = 25,312,399.12/8,211.13
  6. Step 6: Final answer
    x = 3,082.69

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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.