Home / 13,508.83-20,265.39-5,717.71

Finding the Fourth Proportional to 13,508.83, 20,265.39 and 5,717.71

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Solution

The fourth proportional to 13,508.83, 20,265.39 and 5,717.71 is: 8,577.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508.83 : 20,265.39 = 5,717.71 : x
  2. Step 2: Convert to fraction form
    13,508.83/20,265.39 = 5,717.71/x
  3. Step 3: Cross multiply
    13,508.83x = 20,265.39 × 5,717.71
  4. Step 4: Simplify right side
    13,508.83x = 115,871,623.06
  5. Step 5: Solve for x
    x = 115,871,623.06/13,508.83
  6. Step 6: Final answer
    x = 8,577.47

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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.