Home / 13,401.14-18,485.97-8,424.50

Finding the Fourth Proportional to 13,401.14, 18,485.97 and 8,424.50

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Solution

The fourth proportional to 13,401.14, 18,485.97 and 8,424.50 is: 11,621.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,401.14 : 18,485.97 = 8,424.50 : x
  2. Step 2: Convert to fraction form
    13,401.14/18,485.97 = 8,424.50/x
  3. Step 3: Cross multiply
    13,401.14x = 18,485.97 × 8,424.50
  4. Step 4: Simplify right side
    13,401.14x = 155,735,054.27
  5. Step 5: Solve for x
    x = 155,735,054.27/13,401.14
  6. Step 6: Final answer
    x = 11,621.03

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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.