Home / 13,207.37-18,226.88-7,239.29

Finding the Fourth Proportional to 13,207.37, 18,226.88 and 7,239.29

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Solution

The fourth proportional to 13,207.37, 18,226.88 and 7,239.29 is: 9,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,207.37 : 18,226.88 = 7,239.29 : x
  2. Step 2: Convert to fraction form
    13,207.37/18,226.88 = 7,239.29/x
  3. Step 3: Cross multiply
    13,207.37x = 18,226.88 × 7,239.29
  4. Step 4: Simplify right side
    13,207.37x = 131,949,542.78
  5. Step 5: Solve for x
    x = 131,949,542.78/13,207.37
  6. Step 6: Final answer
    x = 9,990.60

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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.