Home / 12,395.61-17,105.94-6,730.35

Finding the Fourth Proportional to 12,395.61, 17,105.94 and 6,730.35

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Solution

The fourth proportional to 12,395.61, 17,105.94 and 6,730.35 is: 9,287.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.61 : 17,105.94 = 6,730.35 : x
  2. Step 2: Convert to fraction form
    12,395.61/17,105.94 = 6,730.35/x
  3. Step 3: Cross multiply
    12,395.61x = 17,105.94 × 6,730.35
  4. Step 4: Simplify right side
    12,395.61x = 115,128,963.28
  5. Step 5: Solve for x
    x = 115,128,963.28/12,395.61
  6. Step 6: Final answer
    x = 9,287.88

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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.