Home / 12,222.54-18,333.65-2,988.62

Finding the Fourth Proportional to 12,222.54, 18,333.65 and 2,988.62

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Solution

The fourth proportional to 12,222.54, 18,333.65 and 2,988.62 is: 4,482.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.54 : 18,333.65 = 2,988.62 : x
  2. Step 2: Convert to fraction form
    12,222.54/18,333.65 = 2,988.62/x
  3. Step 3: Cross multiply
    12,222.54x = 18,333.65 × 2,988.62
  4. Step 4: Simplify right side
    12,222.54x = 54,792,313.06
  5. Step 5: Solve for x
    x = 54,792,313.06/12,222.54
  6. Step 6: Final answer
    x = 4,482.89

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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.