Home / 18,253.36-25,189.63-9,869.86

Finding the Fourth Proportional to 18,253.36, 25,189.63 and 9,869.86

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Solution

The fourth proportional to 18,253.36, 25,189.63 and 9,869.86 is: 13,620.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,253.36 : 25,189.63 = 9,869.86 : x
  2. Step 2: Convert to fraction form
    18,253.36/25,189.63 = 9,869.86/x
  3. Step 3: Cross multiply
    18,253.36x = 25,189.63 × 9,869.86
  4. Step 4: Simplify right side
    18,253.36x = 248,618,121.55
  5. Step 5: Solve for x
    x = 248,618,121.55/18,253.36
  6. Step 6: Final answer
    x = 13,620.40

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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.