Home / 12,219.32-18,330.84-4,426.31

Finding the Fourth Proportional to 12,219.32, 18,330.84 and 4,426.31

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Solution

The fourth proportional to 12,219.32, 18,330.84 and 4,426.31 is: 6,640.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,219.32 : 18,330.84 = 4,426.31 : x
  2. Step 2: Convert to fraction form
    12,219.32/18,330.84 = 4,426.31/x
  3. Step 3: Cross multiply
    12,219.32x = 18,330.84 × 4,426.31
  4. Step 4: Simplify right side
    12,219.32x = 81,138,026.23
  5. Step 5: Solve for x
    x = 81,138,026.23/12,219.32
  6. Step 6: Final answer
    x = 6,640.14

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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.