Home / 13,330.62-18,384.30-11,099.88

Finding the Fourth Proportional to 13,330.62, 18,384.30 and 11,099.88

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Solution

The fourth proportional to 13,330.62, 18,384.30 and 11,099.88 is: 15,307.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.62 : 18,384.30 = 11,099.88 : x
  2. Step 2: Convert to fraction form
    13,330.62/18,384.30 = 11,099.88/x
  3. Step 3: Cross multiply
    13,330.62x = 18,384.30 × 11,099.88
  4. Step 4: Simplify right side
    13,330.62x = 204,063,523.88
  5. Step 5: Solve for x
    x = 204,063,523.88/13,330.62
  6. Step 6: Final answer
    x = 15,307.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.