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Finding the Fourth Proportional to 7,227.06, 9,973.35 and 3,915.06

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Solution

The fourth proportional to 7,227.06, 9,973.35 and 3,915.06 is: 5,402.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,227.06 : 9,973.35 = 3,915.06 : x
  2. Step 2: Convert to fraction form
    7,227.06/9,973.35 = 3,915.06/x
  3. Step 3: Cross multiply
    7,227.06x = 9,973.35 × 3,915.06
  4. Step 4: Simplify right side
    7,227.06x = 39,046,263.65
  5. Step 5: Solve for x
    x = 39,046,263.65/7,227.06
  6. Step 6: Final answer
    x = 5,402.79

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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.