Home / 18,320.34-25,281.96-9,936.84

Finding the Fourth Proportional to 18,320.34, 25,281.96 and 9,936.84

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Solution

The fourth proportional to 18,320.34, 25,281.96 and 9,936.84 is: 13,712.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,320.34 : 25,281.96 = 9,936.84 : x
  2. Step 2: Convert to fraction form
    18,320.34/25,281.96 = 9,936.84/x
  3. Step 3: Cross multiply
    18,320.34x = 25,281.96 × 9,936.84
  4. Step 4: Simplify right side
    18,320.34x = 251,222,791.41
  5. Step 5: Solve for x
    x = 251,222,791.41/18,320.34
  6. Step 6: Final answer
    x = 13,712.78

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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.