Home / 11,145.04-15,387.24-6,959.44

Finding the Fourth Proportional to 11,145.04, 15,387.24 and 6,959.44

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Solution

The fourth proportional to 11,145.04, 15,387.24 and 6,959.44 is: 9,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,145.04 : 15,387.24 = 6,959.44 : x
  2. Step 2: Convert to fraction form
    11,145.04/15,387.24 = 6,959.44/x
  3. Step 3: Cross multiply
    11,145.04x = 15,387.24 × 6,959.44
  4. Step 4: Simplify right side
    11,145.04x = 107,086,573.55
  5. Step 5: Solve for x
    x = 107,086,573.55/11,145.04
  6. Step 6: Final answer
    x = 9,608.45

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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.