Home / 12,329.81-17,017.27-11,919.75

Finding the Fourth Proportional to 12,329.81, 17,017.27 and 11,919.75

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Solution

The fourth proportional to 12,329.81, 17,017.27 and 11,919.75 is: 16,451.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.81 : 17,017.27 = 11,919.75 : x
  2. Step 2: Convert to fraction form
    12,329.81/17,017.27 = 11,919.75/x
  3. Step 3: Cross multiply
    12,329.81x = 17,017.27 × 11,919.75
  4. Step 4: Simplify right side
    12,329.81x = 202,841,510.47
  5. Step 5: Solve for x
    x = 202,841,510.47/12,329.81
  6. Step 6: Final answer
    x = 16,451.31

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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.