Home / 13,424.87-18,522.60-8,394.23

Finding the Fourth Proportional to 13,424.87, 18,522.60 and 8,394.23

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Solution

The fourth proportional to 13,424.87, 18,522.60 and 8,394.23 is: 11,581.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,424.87 : 18,522.60 = 8,394.23 : x
  2. Step 2: Convert to fraction form
    13,424.87/18,522.60 = 8,394.23/x
  3. Step 3: Cross multiply
    13,424.87x = 18,522.60 × 8,394.23
  4. Step 4: Simplify right side
    13,424.87x = 155,482,964.60
  5. Step 5: Solve for x
    x = 155,482,964.60/13,424.87
  6. Step 6: Final answer
    x = 11,581.71

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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.