Home / 13,186.56-18,196.74-7,217.04

Finding the Fourth Proportional to 13,186.56, 18,196.74 and 7,217.04

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Solution

The fourth proportional to 13,186.56, 18,196.74 and 7,217.04 is: 9,959.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186.56 : 18,196.74 = 7,217.04 : x
  2. Step 2: Convert to fraction form
    13,186.56/18,196.74 = 7,217.04/x
  3. Step 3: Cross multiply
    13,186.56x = 18,196.74 × 7,217.04
  4. Step 4: Simplify right side
    13,186.56x = 131,326,600.45
  5. Step 5: Solve for x
    x = 131,326,600.45/13,186.56
  6. Step 6: Final answer
    x = 9,959.13

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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.