Home / 17,918.48-26,877.76-5,438.61

Finding the Fourth Proportional to 17,918.48, 26,877.76 and 5,438.61

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Solution

The fourth proportional to 17,918.48, 26,877.76 and 5,438.61 is: 8,157.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.48 : 26,877.76 = 5,438.61 : x
  2. Step 2: Convert to fraction form
    17,918.48/26,877.76 = 5,438.61/x
  3. Step 3: Cross multiply
    17,918.48x = 26,877.76 × 5,438.61
  4. Step 4: Simplify right side
    17,918.48x = 146,177,640.72
  5. Step 5: Solve for x
    x = 146,177,640.72/17,918.48
  6. Step 6: Final answer
    x = 8,157.93

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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.