Home / 13,321.48-19,945.22-8,646.92

Finding the Fourth Proportional to 13,321.48, 19,945.22 and 8,646.92

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Solution

The fourth proportional to 13,321.48, 19,945.22 and 8,646.92 is: 12,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,321.48 : 19,945.22 = 8,646.92 : x
  2. Step 2: Convert to fraction form
    13,321.48/19,945.22 = 8,646.92/x
  3. Step 3: Cross multiply
    13,321.48x = 19,945.22 × 8,646.92
  4. Step 4: Simplify right side
    13,321.48x = 172,464,721.72
  5. Step 5: Solve for x
    x = 172,464,721.72/13,321.48
  6. Step 6: Final answer
    x = 12,946.36

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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.