Home / 21,308.73-31,966.68-6,514.19

Finding the Fourth Proportional to 21,308.73, 31,966.68 and 6,514.19

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Solution

The fourth proportional to 21,308.73, 31,966.68 and 6,514.19 is: 9,772.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308.73 : 31,966.68 = 6,514.19 : x
  2. Step 2: Convert to fraction form
    21,308.73/31,966.68 = 6,514.19/x
  3. Step 3: Cross multiply
    21,308.73x = 31,966.68 × 6,514.19
  4. Step 4: Simplify right side
    21,308.73x = 208,236,867.36
  5. Step 5: Solve for x
    x = 208,236,867.36/21,308.73
  6. Step 6: Final answer
    x = 9,772.37

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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.