Home / 13,486.98-20,230.67-5,167.42

Finding the Fourth Proportional to 13,486.98, 20,230.67 and 5,167.42

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Solution

The fourth proportional to 13,486.98, 20,230.67 and 5,167.42 is: 7,751.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,486.98 : 20,230.67 = 5,167.42 : x
  2. Step 2: Convert to fraction form
    13,486.98/20,230.67 = 5,167.42/x
  3. Step 3: Cross multiply
    13,486.98x = 20,230.67 × 5,167.42
  4. Step 4: Simplify right side
    13,486.98x = 104,540,368.77
  5. Step 5: Solve for x
    x = 104,540,368.77/13,486.98
  6. Step 6: Final answer
    x = 7,751.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.