Home / 19,050.72-26,299.11-12,687.90

Finding the Fourth Proportional to 19,050.72, 26,299.11 and 12,687.90

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Solution

The fourth proportional to 19,050.72, 26,299.11 and 12,687.90 is: 17,515.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,050.72 : 26,299.11 = 12,687.90 : x
  2. Step 2: Convert to fraction form
    19,050.72/26,299.11 = 12,687.90/x
  3. Step 3: Cross multiply
    19,050.72x = 26,299.11 × 12,687.90
  4. Step 4: Simplify right side
    19,050.72x = 333,680,477.77
  5. Step 5: Solve for x
    x = 333,680,477.77/19,050.72
  6. Step 6: Final answer
    x = 17,515.37

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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.