Home / 26,640.22-39,946.40-7,917.66

Finding the Fourth Proportional to 26,640.22, 39,946.40 and 7,917.66

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Solution

The fourth proportional to 26,640.22, 39,946.40 and 7,917.66 is: 11,872.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,640.22 : 39,946.40 = 7,917.66 : x
  2. Step 2: Convert to fraction form
    26,640.22/39,946.40 = 7,917.66/x
  3. Step 3: Cross multiply
    26,640.22x = 39,946.40 × 7,917.66
  4. Step 4: Simplify right side
    26,640.22x = 316,282,013.42
  5. Step 5: Solve for x
    x = 316,282,013.42/26,640.22
  6. Step 6: Final answer
    x = 11,872.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.