Home / 18,319.87-25,281.32-9,936.37

Finding the Fourth Proportional to 18,319.87, 25,281.32 and 9,936.37

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Solution

The fourth proportional to 18,319.87, 25,281.32 and 9,936.37 is: 13,712.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.87 : 25,281.32 = 9,936.37 : x
  2. Step 2: Convert to fraction form
    18,319.87/25,281.32 = 9,936.37/x
  3. Step 3: Cross multiply
    18,319.87x = 25,281.32 × 9,936.37
  4. Step 4: Simplify right side
    18,319.87x = 251,204,531.53
  5. Step 5: Solve for x
    x = 251,204,531.53/18,319.87
  6. Step 6: Final answer
    x = 13,712.13

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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.