Home / 18,866.76-26,030.79-12,154.73

Finding the Fourth Proportional to 18,866.76, 26,030.79 and 12,154.73

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Solution

The fourth proportional to 18,866.76, 26,030.79 and 12,154.73 is: 16,770.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,866.76 : 26,030.79 = 12,154.73 : x
  2. Step 2: Convert to fraction form
    18,866.76/26,030.79 = 12,154.73/x
  3. Step 3: Cross multiply
    18,866.76x = 26,030.79 × 12,154.73
  4. Step 4: Simplify right side
    18,866.76x = 316,397,093.98
  5. Step 5: Solve for x
    x = 316,397,093.98/18,866.76
  6. Step 6: Final answer
    x = 16,770.08

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Half scale
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Double scale
Find fourth proportional to 18,867.76, 26,032.17 and 12,155.73
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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.