Home / 13,599.12-18,766.69-7,630.77

Finding the Fourth Proportional to 13,599.12, 18,766.69 and 7,630.77

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Solution

The fourth proportional to 13,599.12, 18,766.69 and 7,630.77 is: 10,530.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.12 : 18,766.69 = 7,630.77 : x
  2. Step 2: Convert to fraction form
    13,599.12/18,766.69 = 7,630.77/x
  3. Step 3: Cross multiply
    13,599.12x = 18,766.69 × 7,630.77
  4. Step 4: Simplify right side
    13,599.12x = 143,204,295.05
  5. Step 5: Solve for x
    x = 143,204,295.05/13,599.12
  6. Step 6: Final answer
    x = 10,530.41

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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.