Home / 19,380.16-26,737.70-12,669.64

Finding the Fourth Proportional to 19,380.16, 26,737.70 and 12,669.64

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Solution

The fourth proportional to 19,380.16, 26,737.70 and 12,669.64 is: 17,479.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380.16 : 26,737.70 = 12,669.64 : x
  2. Step 2: Convert to fraction form
    19,380.16/26,737.70 = 12,669.64/x
  3. Step 3: Cross multiply
    19,380.16x = 26,737.70 × 12,669.64
  4. Step 4: Simplify right side
    19,380.16x = 338,757,033.43
  5. Step 5: Solve for x
    x = 338,757,033.43/19,380.16
  6. Step 6: Final answer
    x = 17,479.58

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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.