Home / 11,639.79-17,456.80-5,393.83

Finding the Fourth Proportional to 11,639.79, 17,456.80 and 5,393.83

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Solution

The fourth proportional to 11,639.79, 17,456.80 and 5,393.83 is: 8,089.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,639.79 : 17,456.80 = 5,393.83 : x
  2. Step 2: Convert to fraction form
    11,639.79/17,456.80 = 5,393.83/x
  3. Step 3: Cross multiply
    11,639.79x = 17,456.80 × 5,393.83
  4. Step 4: Simplify right side
    11,639.79x = 94,158,984.57
  5. Step 5: Solve for x
    x = 94,158,984.57/11,639.79
  6. Step 6: Final answer
    x = 8,089.41

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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.