Home / 12,159.22-18,226.27-4,660.72

Finding the Fourth Proportional to 12,159.22, 18,226.27 and 4,660.72

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Solution

The fourth proportional to 12,159.22, 18,226.27 and 4,660.72 is: 6,986.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.22 : 18,226.27 = 4,660.72 : x
  2. Step 2: Convert to fraction form
    12,159.22/18,226.27 = 4,660.72/x
  3. Step 3: Cross multiply
    12,159.22x = 18,226.27 × 4,660.72
  4. Step 4: Simplify right side
    12,159.22x = 84,947,541.11
  5. Step 5: Solve for x
    x = 84,947,541.11/12,159.22
  6. Step 6: Final answer
    x = 6,986.27

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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.