Home / 13,196.46-18,211.08-7,228.26

Finding the Fourth Proportional to 13,196.46, 18,211.08 and 7,228.26

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Solution

The fourth proportional to 13,196.46, 18,211.08 and 7,228.26 is: 9,974.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,196.46 : 18,211.08 = 7,228.26 : x
  2. Step 2: Convert to fraction form
    13,196.46/18,211.08 = 7,228.26/x
  3. Step 3: Cross multiply
    13,196.46x = 18,211.08 × 7,228.26
  4. Step 4: Simplify right side
    13,196.46x = 131,634,421.12
  5. Step 5: Solve for x
    x = 131,634,421.12/13,196.46
  6. Step 6: Final answer
    x = 9,974.98

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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.