Home / 18,322.28-25,284.82-9,938.84

Finding the Fourth Proportional to 18,322.28, 25,284.82 and 9,938.84

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Solution

The fourth proportional to 18,322.28, 25,284.82 and 9,938.84 is: 13,715.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,322.28 : 25,284.82 = 9,938.84 : x
  2. Step 2: Convert to fraction form
    18,322.28/25,284.82 = 9,938.84/x
  3. Step 3: Cross multiply
    18,322.28x = 25,284.82 × 9,938.84
  4. Step 4: Simplify right side
    18,322.28x = 251,301,780.41
  5. Step 5: Solve for x
    x = 251,301,780.41/18,322.28
  6. Step 6: Final answer
    x = 13,715.64

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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.