Home / 10,976.88-15,147.80-6,261.06

Finding the Fourth Proportional to 10,976.88, 15,147.80 and 6,261.06

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Solution

The fourth proportional to 10,976.88, 15,147.80 and 6,261.06 is: 8,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,976.88 : 15,147.80 = 6,261.06 : x
  2. Step 2: Convert to fraction form
    10,976.88/15,147.80 = 6,261.06/x
  3. Step 3: Cross multiply
    10,976.88x = 15,147.80 × 6,261.06
  4. Step 4: Simplify right side
    10,976.88x = 94,841,284.67
  5. Step 5: Solve for x
    x = 94,841,284.67/10,976.88
  6. Step 6: Final answer
    x = 8,640.09

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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.