Home / 18,854.13-26,018.78-11,784.59

Finding the Fourth Proportional to 18,854.13, 26,018.78 and 11,784.59

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Solution

The fourth proportional to 18,854.13, 26,018.78 and 11,784.59 is: 16,262.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,854.13 : 26,018.78 = 11,784.59 : x
  2. Step 2: Convert to fraction form
    18,854.13/26,018.78 = 11,784.59/x
  3. Step 3: Cross multiply
    18,854.13x = 26,018.78 × 11,784.59
  4. Step 4: Simplify right side
    18,854.13x = 306,620,465.58
  5. Step 5: Solve for x
    x = 306,620,465.58/18,854.13
  6. Step 6: Final answer
    x = 16,262.77

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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.