Home / 12,329.82-18,534.83-9,891.32

Finding the Fourth Proportional to 12,329.82, 18,534.83 and 9,891.32

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Solution

The fourth proportional to 12,329.82, 18,534.83 and 9,891.32 is: 14,869.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,329.82 : 18,534.83 = 9,891.32 : x
  2. Step 2: Convert to fraction form
    12,329.82/18,534.83 = 9,891.32/x
  3. Step 3: Cross multiply
    12,329.82x = 18,534.83 × 9,891.32
  4. Step 4: Simplify right side
    12,329.82x = 183,333,792.54
  5. Step 5: Solve for x
    x = 183,333,792.54/12,329.82
  6. Step 6: Final answer
    x = 14,869.14

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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.