Home / 18,248.54-25,178.63-11,078.28

Finding the Fourth Proportional to 18,248.54, 25,178.63 and 11,078.28

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Solution

The fourth proportional to 18,248.54, 25,178.63 and 11,078.28 is: 15,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,248.54 : 25,178.63 = 11,078.28 : x
  2. Step 2: Convert to fraction form
    18,248.54/25,178.63 = 11,078.28/x
  3. Step 3: Cross multiply
    18,248.54x = 25,178.63 × 11,078.28
  4. Step 4: Simplify right side
    18,248.54x = 278,935,857.77
  5. Step 5: Solve for x
    x = 278,935,857.77/18,248.54
  6. Step 6: Final answer
    x = 15,285.38

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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.