Home / 18,736.54-25,857.20-10,778.76

Finding the Fourth Proportional to 18,736.54, 25,857.20 and 10,778.76

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Solution

The fourth proportional to 18,736.54, 25,857.20 and 10,778.76 is: 14,875.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,736.54 : 25,857.20 = 10,778.76 : x
  2. Step 2: Convert to fraction form
    18,736.54/25,857.20 = 10,778.76/x
  3. Step 3: Cross multiply
    18,736.54x = 25,857.20 × 10,778.76
  4. Step 4: Simplify right side
    18,736.54x = 278,708,580.02
  5. Step 5: Solve for x
    x = 278,708,580.02/18,736.54
  6. Step 6: Final answer
    x = 14,875.14

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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.