Home / 12,231.16-18,349.11-5,211.04

Finding the Fourth Proportional to 12,231.16, 18,349.11 and 5,211.04

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Solution

The fourth proportional to 12,231.16, 18,349.11 and 5,211.04 is: 7,817.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.16 : 18,349.11 = 5,211.04 : x
  2. Step 2: Convert to fraction form
    12,231.16/18,349.11 = 5,211.04/x
  3. Step 3: Cross multiply
    12,231.16x = 18,349.11 × 5,211.04
  4. Step 4: Simplify right side
    12,231.16x = 95,617,946.17
  5. Step 5: Solve for x
    x = 95,617,946.17/12,231.16
  6. Step 6: Final answer
    x = 7,817.57

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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.