Home / 18,253.12-25,189.20-9,869.44

Finding the Fourth Proportional to 18,253.12, 25,189.20 and 9,869.44

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Solution

The fourth proportional to 18,253.12, 25,189.20 and 9,869.44 is: 13,619.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.12 : 25,189.20 = 9,869.44 : x
  2. Step 2: Convert to fraction form
    18,253.12/25,189.20 = 9,869.44/x
  3. Step 3: Cross multiply
    18,253.12x = 25,189.20 × 9,869.44
  4. Step 4: Simplify right side
    18,253.12x = 248,603,298.05
  5. Step 5: Solve for x
    x = 248,603,298.05/18,253.12
  6. Step 6: Final answer
    x = 13,619.77

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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.