Home / 13,426.74-18,523.98-8,119.62

Finding the Fourth Proportional to 13,426.74, 18,523.98 and 8,119.62

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Solution

The fourth proportional to 13,426.74, 18,523.98 and 8,119.62 is: 11,202.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.74 : 18,523.98 = 8,119.62 : x
  2. Step 2: Convert to fraction form
    13,426.74/18,523.98 = 8,119.62/x
  3. Step 3: Cross multiply
    13,426.74x = 18,523.98 × 8,119.62
  4. Step 4: Simplify right side
    13,426.74x = 150,407,678.49
  5. Step 5: Solve for x
    x = 150,407,678.49/13,426.74
  6. Step 6: Final answer
    x = 11,202.10

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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.