Home / 14,109.08-21,170.55-5,675.25

Finding the Fourth Proportional to 14,109.08, 21,170.55 and 5,675.25

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Solution

The fourth proportional to 14,109.08, 21,170.55 and 5,675.25 is: 8,515.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,109.08 : 21,170.55 = 5,675.25 : x
  2. Step 2: Convert to fraction form
    14,109.08/21,170.55 = 5,675.25/x
  3. Step 3: Cross multiply
    14,109.08x = 21,170.55 × 5,675.25
  4. Step 4: Simplify right side
    14,109.08x = 120,148,163.89
  5. Step 5: Solve for x
    x = 120,148,163.89/14,109.08
  6. Step 6: Final answer
    x = 8,515.66

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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.