Home / 12,216.88-18,328.02-4,426.30

Finding the Fourth Proportional to 12,216.88, 18,328.02 and 4,426.30

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Solution

The fourth proportional to 12,216.88, 18,328.02 and 4,426.30 is: 6,640.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.88 : 18,328.02 = 4,426.30 : x
  2. Step 2: Convert to fraction form
    12,216.88/18,328.02 = 4,426.30/x
  3. Step 3: Cross multiply
    12,216.88x = 18,328.02 × 4,426.30
  4. Step 4: Simplify right side
    12,216.88x = 81,125,314.93
  5. Step 5: Solve for x
    x = 81,125,314.93/12,216.88
  6. Step 6: Final answer
    x = 6,640.43

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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.