Home / 12,395.85-17,106.28-6,730.61

Finding the Fourth Proportional to 12,395.85, 17,106.28 and 6,730.61

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Solution

The fourth proportional to 12,395.85, 17,106.28 and 6,730.61 is: 9,288.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,395.85 : 17,106.28 = 6,730.61 : x
  2. Step 2: Convert to fraction form
    12,395.85/17,106.28 = 6,730.61/x
  3. Step 3: Cross multiply
    12,395.85x = 17,106.28 × 6,730.61
  4. Step 4: Simplify right side
    12,395.85x = 115,135,699.23
  5. Step 5: Solve for x
    x = 115,135,699.23/12,395.85
  6. Step 6: Final answer
    x = 9,288.25

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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.