Home / 18,256.05-25,169.00-13,699.40

Finding the Fourth Proportional to 18,256.05, 25,169.00 and 13,699.40

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Solution

The fourth proportional to 18,256.05, 25,169.00 and 13,699.40 is: 18,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,256.05 : 25,169.00 = 13,699.40 : x
  2. Step 2: Convert to fraction form
    18,256.05/25,169.00 = 13,699.40/x
  3. Step 3: Cross multiply
    18,256.05x = 25,169.00 × 13,699.40
  4. Step 4: Simplify right side
    18,256.05x = 344,800,004.26
  5. Step 5: Solve for x
    x = 344,800,004.26/18,256.05
  6. Step 6: Final answer
    x = 18,886.89

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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.