Home / 8,721.54-13,083.12-4,558.68

Finding the Fourth Proportional to 8,721.54, 13,083.12 and 4,558.68

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Solution

The fourth proportional to 8,721.54, 13,083.12 and 4,558.68 is: 6,838.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,721.54 : 13,083.12 = 4,558.68 : x
  2. Step 2: Convert to fraction form
    8,721.54/13,083.12 = 4,558.68/x
  3. Step 3: Cross multiply
    8,721.54x = 13,083.12 × 4,558.68
  4. Step 4: Simplify right side
    8,721.54x = 59,641,757.48
  5. Step 5: Solve for x
    x = 59,641,757.48/8,721.54
  6. Step 6: Final answer
    x = 6,838.44

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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.