Home / 13,630.15-18,813.27-8,252.65

Finding the Fourth Proportional to 13,630.15, 18,813.27 and 8,252.65

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Solution

The fourth proportional to 13,630.15, 18,813.27 and 8,252.65 is: 11,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.15 : 18,813.27 = 8,252.65 : x
  2. Step 2: Convert to fraction form
    13,630.15/18,813.27 = 8,252.65/x
  3. Step 3: Cross multiply
    13,630.15x = 18,813.27 × 8,252.65
  4. Step 4: Simplify right side
    13,630.15x = 155,259,332.67
  5. Step 5: Solve for x
    x = 155,259,332.67/13,630.15
  6. Step 6: Final answer
    x = 11,390.87

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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.