Home / 12,199.76-18,299.55-3,434.62

Finding the Fourth Proportional to 12,199.76, 18,299.55 and 3,434.62

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Solution

The fourth proportional to 12,199.76, 18,299.55 and 3,434.62 is: 5,151.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,199.76 : 18,299.55 = 3,434.62 : x
  2. Step 2: Convert to fraction form
    12,199.76/18,299.55 = 3,434.62/x
  3. Step 3: Cross multiply
    12,199.76x = 18,299.55 × 3,434.62
  4. Step 4: Simplify right side
    12,199.76x = 62,852,000.42
  5. Step 5: Solve for x
    x = 62,852,000.42/12,199.76
  6. Step 6: Final answer
    x = 5,151.90

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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.