Home / 13,539.11-18,676.46-7,873.23

Finding the Fourth Proportional to 13,539.11, 18,676.46 and 7,873.23

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Solution

The fourth proportional to 13,539.11, 18,676.46 and 7,873.23 is: 10,860.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,539.11 : 18,676.46 = 7,873.23 : x
  2. Step 2: Convert to fraction form
    13,539.11/18,676.46 = 7,873.23/x
  3. Step 3: Cross multiply
    13,539.11x = 18,676.46 × 7,873.23
  4. Step 4: Simplify right side
    13,539.11x = 147,044,097.72
  5. Step 5: Solve for x
    x = 147,044,097.72/13,539.11
  6. Step 6: Final answer
    x = 10,860.69

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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.