Home / 13,186.50-18,196.67-7,217.01

Finding the Fourth Proportional to 13,186.50, 18,196.67 and 7,217.01

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Solution

The fourth proportional to 13,186.50, 18,196.67 and 7,217.01 is: 9,959.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.50 : 18,196.67 = 7,217.01 : x
  2. Step 2: Convert to fraction form
    13,186.50/18,196.67 = 7,217.01/x
  3. Step 3: Cross multiply
    13,186.50x = 18,196.67 × 7,217.01
  4. Step 4: Simplify right side
    13,186.50x = 131,325,549.36
  5. Step 5: Solve for x
    x = 131,325,549.36/13,186.50
  6. Step 6: Final answer
    x = 9,959.09

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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.