Home / 13,676.52-18,862.86-9,900.24

Finding the Fourth Proportional to 13,676.52, 18,862.86 and 9,900.24

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Solution

The fourth proportional to 13,676.52, 18,862.86 and 9,900.24 is: 13,654.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,676.52 : 18,862.86 = 9,900.24 : x
  2. Step 2: Convert to fraction form
    13,676.52/18,862.86 = 9,900.24/x
  3. Step 3: Cross multiply
    13,676.52x = 18,862.86 × 9,900.24
  4. Step 4: Simplify right side
    13,676.52x = 186,746,841.09
  5. Step 5: Solve for x
    x = 186,746,841.09/13,676.52
  6. Step 6: Final answer
    x = 13,654.56

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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.