Home / 14,119.76-21,175.32-5,355.92

Finding the Fourth Proportional to 14,119.76, 21,175.32 and 5,355.92

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Solution

The fourth proportional to 14,119.76, 21,175.32 and 5,355.92 is: 8,032.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,119.76 : 21,175.32 = 5,355.92 : x
  2. Step 2: Convert to fraction form
    14,119.76/21,175.32 = 5,355.92/x
  3. Step 3: Cross multiply
    14,119.76x = 21,175.32 × 5,355.92
  4. Step 4: Simplify right side
    14,119.76x = 113,413,319.89
  5. Step 5: Solve for x
    x = 113,413,319.89/14,119.76
  6. Step 6: Final answer
    x = 8,032.24

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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.