Home / 18,308.13-25,263.79-11,137.08

Finding the Fourth Proportional to 18,308.13, 25,263.79 and 11,137.08

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Solution

The fourth proportional to 18,308.13, 25,263.79 and 11,137.08 is: 15,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.13 : 25,263.79 = 11,137.08 : x
  2. Step 2: Convert to fraction form
    18,308.13/25,263.79 = 11,137.08/x
  3. Step 3: Cross multiply
    18,308.13x = 25,263.79 × 11,137.08
  4. Step 4: Simplify right side
    18,308.13x = 281,364,850.33
  5. Step 5: Solve for x
    x = 281,364,850.33/18,308.13
  6. Step 6: Final answer
    x = 15,368.30

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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.