Home / 19,342.77-26,704.67-12,639.62

Finding the Fourth Proportional to 19,342.77, 26,704.67 and 12,639.62

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Solution

The fourth proportional to 19,342.77, 26,704.67 and 12,639.62 is: 17,450.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,342.77 : 26,704.67 = 12,639.62 : x
  2. Step 2: Convert to fraction form
    19,342.77/26,704.67 = 12,639.62/x
  3. Step 3: Cross multiply
    19,342.77x = 26,704.67 × 12,639.62
  4. Step 4: Simplify right side
    19,342.77x = 337,536,933.90
  5. Step 5: Solve for x
    x = 337,536,933.90/19,342.77
  6. Step 6: Final answer
    x = 17,450.29

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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.