Home / 11,283.74-15,583.84-7,757.18

Finding the Fourth Proportional to 11,283.74, 15,583.84 and 7,757.18

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Solution

The fourth proportional to 11,283.74, 15,583.84 and 7,757.18 is: 10,713.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,283.74 : 15,583.84 = 7,757.18 : x
  2. Step 2: Convert to fraction form
    11,283.74/15,583.84 = 7,757.18/x
  3. Step 3: Cross multiply
    11,283.74x = 15,583.84 × 7,757.18
  4. Step 4: Simplify right side
    11,283.74x = 120,886,651.97
  5. Step 5: Solve for x
    x = 120,886,651.97/11,283.74
  6. Step 6: Final answer
    x = 10,713.35

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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.