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Finding the Fourth Proportional to 18,308.68, 25,266 and 9,925.18

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Solution

The fourth proportional to 18,308.68, 25,266 and 9,925.18 is: 13,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.68 : 25,266 = 9,925.18 : x
  2. Step 2: Convert to fraction form
    18,308.68/25,266 = 9,925.18/x
  3. Step 3: Cross multiply
    18,308.68x = 25,266 × 9,925.18
  4. Step 4: Simplify right side
    18,308.68x = 250,769,597.88
  5. Step 5: Solve for x
    x = 250,769,597.88/18,308.68
  6. Step 6: Final answer
    x = 13,696.76

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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.