Home / 19,091.70-26,337.54-12,379.50

Finding the Fourth Proportional to 19,091.70, 26,337.54 and 12,379.50

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Solution

The fourth proportional to 19,091.70, 26,337.54 and 12,379.50 is: 17,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,091.70 : 26,337.54 = 12,379.50 : x
  2. Step 2: Convert to fraction form
    19,091.70/26,337.54 = 12,379.50/x
  3. Step 3: Cross multiply
    19,091.70x = 26,337.54 × 12,379.50
  4. Step 4: Simplify right side
    19,091.70x = 326,045,576.43
  5. Step 5: Solve for x
    x = 326,045,576.43/19,091.70
  6. Step 6: Final answer
    x = 17,077.87

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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.