Home / 11,084.75-15,275.84-7,935.47

Finding the Fourth Proportional to 11,084.75, 15,275.84 and 7,935.47

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Solution

The fourth proportional to 11,084.75, 15,275.84 and 7,935.47 is: 10,935.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,084.75 : 15,275.84 = 7,935.47 : x
  2. Step 2: Convert to fraction form
    11,084.75/15,275.84 = 7,935.47/x
  3. Step 3: Cross multiply
    11,084.75x = 15,275.84 × 7,935.47
  4. Step 4: Simplify right side
    11,084.75x = 121,220,913.50
  5. Step 5: Solve for x
    x = 121,220,913.50/11,084.75
  6. Step 6: Final answer
    x = 10,935.83

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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.