Home / 12,344.40-18,518.20-6,107.60

Finding the Fourth Proportional to 12,344.40, 18,518.20 and 6,107.60

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Solution

The fourth proportional to 12,344.40, 18,518.20 and 6,107.60 is: 9,162.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.40 : 18,518.20 = 6,107.60 : x
  2. Step 2: Convert to fraction form
    12,344.40/18,518.20 = 6,107.60/x
  3. Step 3: Cross multiply
    12,344.40x = 18,518.20 × 6,107.60
  4. Step 4: Simplify right side
    12,344.40x = 113,101,758.32
  5. Step 5: Solve for x
    x = 113,101,758.32/12,344.40
  6. Step 6: Final answer
    x = 9,162.19

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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.