Home / 16,770.91-23,144.41-9,217.51

Finding the Fourth Proportional to 16,770.91, 23,144.41 and 9,217.51

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Solution

The fourth proportional to 16,770.91, 23,144.41 and 9,217.51 is: 12,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,770.91 : 23,144.41 = 9,217.51 : x
  2. Step 2: Convert to fraction form
    16,770.91/23,144.41 = 9,217.51/x
  3. Step 3: Cross multiply
    16,770.91x = 23,144.41 × 9,217.51
  4. Step 4: Simplify right side
    16,770.91x = 213,333,668.81
  5. Step 5: Solve for x
    x = 213,333,668.81/16,770.91
  6. Step 6: Final answer
    x = 12,720.46

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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.