Home / 12,441.49-17,169.63-7,135.28

Finding the Fourth Proportional to 12,441.49, 17,169.63 and 7,135.28

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Solution

The fourth proportional to 12,441.49, 17,169.63 and 7,135.28 is: 9,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,441.49 : 17,169.63 = 7,135.28 : x
  2. Step 2: Convert to fraction form
    12,441.49/17,169.63 = 7,135.28/x
  3. Step 3: Cross multiply
    12,441.49x = 17,169.63 × 7,135.28
  4. Step 4: Simplify right side
    12,441.49x = 122,510,117.55
  5. Step 5: Solve for x
    x = 122,510,117.55/12,441.49
  6. Step 6: Final answer
    x = 9,846.90

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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.