Home / 8,940.66-12,335.60-7,046.36

Finding the Fourth Proportional to 8,940.66, 12,335.60 and 7,046.36

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Solution

The fourth proportional to 8,940.66, 12,335.60 and 7,046.36 is: 9,721.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,940.66 : 12,335.60 = 7,046.36 : x
  2. Step 2: Convert to fraction form
    8,940.66/12,335.60 = 7,046.36/x
  3. Step 3: Cross multiply
    8,940.66x = 12,335.60 × 7,046.36
  4. Step 4: Simplify right side
    8,940.66x = 86,920,981.51
  5. Step 5: Solve for x
    x = 86,920,981.51/8,940.66
  6. Step 6: Final answer
    x = 9,721.99

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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.