Home / 12,110.63-18,167.49-4,319.51

Finding the Fourth Proportional to 12,110.63, 18,167.49 and 4,319.51

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Solution

The fourth proportional to 12,110.63, 18,167.49 and 4,319.51 is: 6,479.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,110.63 : 18,167.49 = 4,319.51 : x
  2. Step 2: Convert to fraction form
    12,110.63/18,167.49 = 4,319.51/x
  3. Step 3: Cross multiply
    12,110.63x = 18,167.49 × 4,319.51
  4. Step 4: Simplify right side
    12,110.63x = 78,474,563.89
  5. Step 5: Solve for x
    x = 78,474,563.89/12,110.63
  6. Step 6: Final answer
    x = 6,479.81

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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.