Home / 14,972.30-20,650.11-9,668.42

Finding the Fourth Proportional to 14,972.30, 20,650.11 and 9,668.42

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Solution

The fourth proportional to 14,972.30, 20,650.11 and 9,668.42 is: 13,334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,972.30 : 20,650.11 = 9,668.42 : x
  2. Step 2: Convert to fraction form
    14,972.30/20,650.11 = 9,668.42/x
  3. Step 3: Cross multiply
    14,972.30x = 20,650.11 × 9,668.42
  4. Step 4: Simplify right side
    14,972.30x = 199,653,936.53
  5. Step 5: Solve for x
    x = 199,653,936.53/14,972.30
  6. Step 6: Final answer
    x = 13,334.89

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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.