Home / 12,299.84-18,522.72-11,081.60

Finding the Fourth Proportional to 12,299.84, 18,522.72 and 11,081.60

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Solution

The fourth proportional to 12,299.84, 18,522.72 and 11,081.60 is: 16,688.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,299.84 : 18,522.72 = 11,081.60 : x
  2. Step 2: Convert to fraction form
    12,299.84/18,522.72 = 11,081.60/x
  3. Step 3: Cross multiply
    12,299.84x = 18,522.72 × 11,081.60
  4. Step 4: Simplify right side
    12,299.84x = 205,261,373.95
  5. Step 5: Solve for x
    x = 205,261,373.95/12,299.84
  6. Step 6: Final answer
    x = 16,688.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.