Home / 19,406.59-26,780.73-12,235.05

Finding the Fourth Proportional to 19,406.59, 26,780.73 and 12,235.05

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Solution

The fourth proportional to 19,406.59, 26,780.73 and 12,235.05 is: 16,884.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.59 : 26,780.73 = 12,235.05 : x
  2. Step 2: Convert to fraction form
    19,406.59/26,780.73 = 12,235.05/x
  3. Step 3: Cross multiply
    19,406.59x = 26,780.73 × 12,235.05
  4. Step 4: Simplify right side
    19,406.59x = 327,663,524.71
  5. Step 5: Solve for x
    x = 327,663,524.71/19,406.59
  6. Step 6: Final answer
    x = 16,884.14

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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.