Home / 14,138.29-21,201.63-5,254.21

Finding the Fourth Proportional to 14,138.29, 21,201.63 and 5,254.21

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Solution

The fourth proportional to 14,138.29, 21,201.63 and 5,254.21 is: 7,879.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.29 : 21,201.63 = 5,254.21 : x
  2. Step 2: Convert to fraction form
    14,138.29/21,201.63 = 5,254.21/x
  3. Step 3: Cross multiply
    14,138.29x = 21,201.63 × 5,254.21
  4. Step 4: Simplify right side
    14,138.29x = 111,397,816.36
  5. Step 5: Solve for x
    x = 111,397,816.36/14,138.29
  6. Step 6: Final answer
    x = 7,879.16

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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.