Home / 13,273.05-18,322.56-8,788.89

Finding the Fourth Proportional to 13,273.05, 18,322.56 and 8,788.89

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Solution

The fourth proportional to 13,273.05, 18,322.56 and 8,788.89 is: 12,132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.05 : 18,322.56 = 8,788.89 : x
  2. Step 2: Convert to fraction form
    13,273.05/18,322.56 = 8,788.89/x
  3. Step 3: Cross multiply
    13,273.05x = 18,322.56 × 8,788.89
  4. Step 4: Simplify right side
    13,273.05x = 161,034,964.36
  5. Step 5: Solve for x
    x = 161,034,964.36/13,273.05
  6. Step 6: Final answer
    x = 12,132.48

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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.