Home / 18,342.12-25,310.66-10,788.76

Finding the Fourth Proportional to 18,342.12, 25,310.66 and 10,788.76

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Solution

The fourth proportional to 18,342.12, 25,310.66 and 10,788.76 is: 14,887.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.12 : 25,310.66 = 10,788.76 : x
  2. Step 2: Convert to fraction form
    18,342.12/25,310.66 = 10,788.76/x
  3. Step 3: Cross multiply
    18,342.12x = 25,310.66 × 10,788.76
  4. Step 4: Simplify right side
    18,342.12x = 273,070,636.18
  5. Step 5: Solve for x
    x = 273,070,636.18/18,342.12
  6. Step 6: Final answer
    x = 14,887.63

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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.