Home / 12,345.73-17,036.98-6,680.35

Finding the Fourth Proportional to 12,345.73, 17,036.98 and 6,680.35

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Solution

The fourth proportional to 12,345.73, 17,036.98 and 6,680.35 is: 9,218.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345.73 : 17,036.98 = 6,680.35 : x
  2. Step 2: Convert to fraction form
    12,345.73/17,036.98 = 6,680.35/x
  3. Step 3: Cross multiply
    12,345.73x = 17,036.98 × 6,680.35
  4. Step 4: Simplify right side
    12,345.73x = 113,812,930.05
  5. Step 5: Solve for x
    x = 113,812,930.05/12,345.73
  6. Step 6: Final answer
    x = 9,218.81

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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.