Home / 13,401.16-18,487.38-8,362.12

Finding the Fourth Proportional to 13,401.16, 18,487.38 and 8,362.12

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Solution

The fourth proportional to 13,401.16, 18,487.38 and 8,362.12 is: 11,535.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.16 : 18,487.38 = 8,362.12 : x
  2. Step 2: Convert to fraction form
    13,401.16/18,487.38 = 8,362.12/x
  3. Step 3: Cross multiply
    13,401.16x = 18,487.38 × 8,362.12
  4. Step 4: Simplify right side
    13,401.16x = 154,593,690.05
  5. Step 5: Solve for x
    x = 154,593,690.05/13,401.16
  6. Step 6: Final answer
    x = 11,535.84

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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.