Home / 8,979.36-13,467.02-3,430.73

Finding the Fourth Proportional to 8,979.36, 13,467.02 and 3,430.73

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Solution

The fourth proportional to 8,979.36, 13,467.02 and 3,430.73 is: 5,145.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,979.36 : 13,467.02 = 3,430.73 : x
  2. Step 2: Convert to fraction form
    8,979.36/13,467.02 = 3,430.73/x
  3. Step 3: Cross multiply
    8,979.36x = 13,467.02 × 3,430.73
  4. Step 4: Simplify right side
    8,979.36x = 46,201,625.04
  5. Step 5: Solve for x
    x = 46,201,625.04/8,979.36
  6. Step 6: Final answer
    x = 5,145.31

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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.