Home / 12,260.64-16,920.84-7,226.43

Finding the Fourth Proportional to 12,260.64, 16,920.84 and 7,226.43

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Solution

The fourth proportional to 12,260.64, 16,920.84 and 7,226.43 is: 9,973.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,260.64 : 16,920.84 = 7,226.43 : x
  2. Step 2: Convert to fraction form
    12,260.64/16,920.84 = 7,226.43/x
  3. Step 3: Cross multiply
    12,260.64x = 16,920.84 × 7,226.43
  4. Step 4: Simplify right side
    12,260.64x = 122,277,265.80
  5. Step 5: Solve for x
    x = 122,277,265.80/12,260.64
  6. Step 6: Final answer
    x = 9,973.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.