Home / 13,169.64-18,172.13-7,426.85

Finding the Fourth Proportional to 13,169.64, 18,172.13 and 7,426.85

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Solution

The fourth proportional to 13,169.64, 18,172.13 and 7,426.85 is: 10,247.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,169.64 : 18,172.13 = 7,426.85 : x
  2. Step 2: Convert to fraction form
    13,169.64/18,172.13 = 7,426.85/x
  3. Step 3: Cross multiply
    13,169.64x = 18,172.13 × 7,426.85
  4. Step 4: Simplify right side
    13,169.64x = 134,961,555.70
  5. Step 5: Solve for x
    x = 134,961,555.70/13,169.64
  6. Step 6: Final answer
    x = 10,247.93

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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.