Home / 12,281.92-18,426.77-4,384.26

Finding the Fourth Proportional to 12,281.92, 18,426.77 and 4,384.26

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Solution

The fourth proportional to 12,281.92, 18,426.77 and 4,384.26 is: 6,577.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,281.92 : 18,426.77 = 4,384.26 : x
  2. Step 2: Convert to fraction form
    12,281.92/18,426.77 = 4,384.26/x
  3. Step 3: Cross multiply
    12,281.92x = 18,426.77 × 4,384.26
  4. Step 4: Simplify right side
    12,281.92x = 80,787,707.83
  5. Step 5: Solve for x
    x = 80,787,707.83/12,281.92
  6. Step 6: Final answer
    x = 6,577.78

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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.