Home / 7,724.13-11,640.60-6,984.58

Finding the Fourth Proportional to 7,724.13, 11,640.60 and 6,984.58

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Solution

The fourth proportional to 7,724.13, 11,640.60 and 6,984.58 is: 10,526.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,724.13 : 11,640.60 = 6,984.58 : x
  2. Step 2: Convert to fraction form
    7,724.13/11,640.60 = 6,984.58/x
  3. Step 3: Cross multiply
    7,724.13x = 11,640.60 × 6,984.58
  4. Step 4: Simplify right side
    7,724.13x = 81,304,701.95
  5. Step 5: Solve for x
    x = 81,304,701.95/7,724.13
  6. Step 6: Final answer
    x = 10,526.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.