Home / 12,216.96-18,312.92-4,818.42

Finding the Fourth Proportional to 12,216.96, 18,312.92 and 4,818.42

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Solution

The fourth proportional to 12,216.96, 18,312.92 and 4,818.42 is: 7,222.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.96 : 18,312.92 = 4,818.42 : x
  2. Step 2: Convert to fraction form
    12,216.96/18,312.92 = 4,818.42/x
  3. Step 3: Cross multiply
    12,216.96x = 18,312.92 × 4,818.42
  4. Step 4: Simplify right side
    12,216.96x = 88,239,339.99
  5. Step 5: Solve for x
    x = 88,239,339.99/12,216.96
  6. Step 6: Final answer
    x = 7,222.69

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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.