Home / 13,219.08-18,242.20-7,250.64

Finding the Fourth Proportional to 13,219.08, 18,242.20 and 7,250.64

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Solution

The fourth proportional to 13,219.08, 18,242.20 and 7,250.64 is: 10,005.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.08 : 18,242.20 = 7,250.64 : x
  2. Step 2: Convert to fraction form
    13,219.08/18,242.20 = 7,250.64/x
  3. Step 3: Cross multiply
    13,219.08x = 18,242.20 × 7,250.64
  4. Step 4: Simplify right side
    13,219.08x = 132,267,625.01
  5. Step 5: Solve for x
    x = 132,267,625.01/13,219.08
  6. Step 6: Final answer
    x = 10,005.81

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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.