Home / 13,143.33-19,717.77-4,378.92

Finding the Fourth Proportional to 13,143.33, 19,717.77 and 4,378.92

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Solution

The fourth proportional to 13,143.33, 19,717.77 and 4,378.92 is: 6,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,143.33 : 19,717.77 = 4,378.92 : x
  2. Step 2: Convert to fraction form
    13,143.33/19,717.77 = 4,378.92/x
  3. Step 3: Cross multiply
    13,143.33x = 19,717.77 × 4,378.92
  4. Step 4: Simplify right side
    13,143.33x = 86,342,537.41
  5. Step 5: Solve for x
    x = 86,342,537.41/13,143.33
  6. Step 6: Final answer
    x = 6,569.30

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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.