Home / 12,815.28-19,225.44-5,019.84

Finding the Fourth Proportional to 12,815.28, 19,225.44 and 5,019.84

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Solution

The fourth proportional to 12,815.28, 19,225.44 and 5,019.84 is: 7,530.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,815.28 : 19,225.44 = 5,019.84 : x
  2. Step 2: Convert to fraction form
    12,815.28/19,225.44 = 5,019.84/x
  3. Step 3: Cross multiply
    12,815.28x = 19,225.44 × 5,019.84
  4. Step 4: Simplify right side
    12,815.28x = 96,508,632.73
  5. Step 5: Solve for x
    x = 96,508,632.73/12,815.28
  6. Step 6: Final answer
    x = 7,530.75

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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.