Home / 12,816.20-19,225.51-4,808.84

Finding the Fourth Proportional to 12,816.20, 19,225.51 and 4,808.84

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Solution

The fourth proportional to 12,816.20, 19,225.51 and 4,808.84 is: 7,213.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,816.20 : 19,225.51 = 4,808.84 : x
  2. Step 2: Convert to fraction form
    12,816.20/19,225.51 = 4,808.84/x
  3. Step 3: Cross multiply
    12,816.20x = 19,225.51 × 4,808.84
  4. Step 4: Simplify right side
    12,816.20x = 92,452,293.36
  5. Step 5: Solve for x
    x = 92,452,293.36/12,816.20
  6. Step 6: Final answer
    x = 7,213.70

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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.