Home / 12,206.64-18,269.84-9,268.76

Finding the Fourth Proportional to 12,206.64, 18,269.84 and 9,268.76

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Solution

The fourth proportional to 12,206.64, 18,269.84 and 9,268.76 is: 13,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.64 : 18,269.84 = 9,268.76 : x
  2. Step 2: Convert to fraction form
    12,206.64/18,269.84 = 9,268.76/x
  3. Step 3: Cross multiply
    12,206.64x = 18,269.84 × 9,268.76
  4. Step 4: Simplify right side
    12,206.64x = 169,338,762.20
  5. Step 5: Solve for x
    x = 169,338,762.20/12,206.64
  6. Step 6: Final answer
    x = 13,872.68

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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.