Home / 12,345.71-17,036.96-6,680.33

Finding the Fourth Proportional to 12,345.71, 17,036.96 and 6,680.33

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Solution

The fourth proportional to 12,345.71, 17,036.96 and 6,680.33 is: 9,218.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.71 : 17,036.96 = 6,680.33 : x
  2. Step 2: Convert to fraction form
    12,345.71/17,036.96 = 6,680.33/x
  3. Step 3: Cross multiply
    12,345.71x = 17,036.96 × 6,680.33
  4. Step 4: Simplify right side
    12,345.71x = 113,812,481.60
  5. Step 5: Solve for x
    x = 113,812,481.60/12,345.71
  6. Step 6: Final answer
    x = 9,218.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.