Home / 12,579.80-17,360.02-6,837.20

Finding the Fourth Proportional to 12,579.80, 17,360.02 and 6,837.20

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Solution

The fourth proportional to 12,579.80, 17,360.02 and 6,837.20 is: 9,435.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,579.80 : 17,360.02 = 6,837.20 : x
  2. Step 2: Convert to fraction form
    12,579.80/17,360.02 = 6,837.20/x
  3. Step 3: Cross multiply
    12,579.80x = 17,360.02 × 6,837.20
  4. Step 4: Simplify right side
    12,579.80x = 118,693,928.74
  5. Step 5: Solve for x
    x = 118,693,928.74/12,579.80
  6. Step 6: Final answer
    x = 9,435.28

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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.