Home / 13,895.20-20,842.80-6,968.08

Finding the Fourth Proportional to 13,895.20, 20,842.80 and 6,968.08

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Solution

The fourth proportional to 13,895.20, 20,842.80 and 6,968.08 is: 10,452.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,895.20 : 20,842.80 = 6,968.08 : x
  2. Step 2: Convert to fraction form
    13,895.20/20,842.80 = 6,968.08/x
  3. Step 3: Cross multiply
    13,895.20x = 20,842.80 × 6,968.08
  4. Step 4: Simplify right side
    13,895.20x = 145,234,297.82
  5. Step 5: Solve for x
    x = 145,234,297.82/13,895.20
  6. Step 6: Final answer
    x = 10,452.12

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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.