Home / 12,215.04-16,857.08-6,837.45

Finding the Fourth Proportional to 12,215.04, 16,857.08 and 6,837.45

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Solution

The fourth proportional to 12,215.04, 16,857.08 and 6,837.45 is: 9,435.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,215.04 : 16,857.08 = 6,837.45 : x
  2. Step 2: Convert to fraction form
    12,215.04/16,857.08 = 6,837.45/x
  3. Step 3: Cross multiply
    12,215.04x = 16,857.08 × 6,837.45
  4. Step 4: Simplify right side
    12,215.04x = 115,259,449.53
  5. Step 5: Solve for x
    x = 115,259,449.53/12,215.04
  6. Step 6: Final answer
    x = 9,435.86

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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.