Home / 12,205.62-18,306.81-4,808.16

Finding the Fourth Proportional to 12,205.62, 18,306.81 and 4,808.16

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Solution

The fourth proportional to 12,205.62, 18,306.81 and 4,808.16 is: 7,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,205.62 : 18,306.81 = 4,808.16 : x
  2. Step 2: Convert to fraction form
    12,205.62/18,306.81 = 4,808.16/x
  3. Step 3: Cross multiply
    12,205.62x = 18,306.81 × 4,808.16
  4. Step 4: Simplify right side
    12,205.62x = 88,022,071.57
  5. Step 5: Solve for x
    x = 88,022,071.57/12,205.62
  6. Step 6: Final answer
    x = 7,211.60

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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.