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Finding the Fourth Proportional to 7,948.71, 11,908.71 and 7,480.26

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Solution

The fourth proportional to 7,948.71, 11,908.71 and 7,480.26 is: 11,206.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.71 : 11,908.71 = 7,480.26 : x
  2. Step 2: Convert to fraction form
    7,948.71/11,908.71 = 7,480.26/x
  3. Step 3: Cross multiply
    7,948.71x = 11,908.71 × 7,480.26
  4. Step 4: Simplify right side
    7,948.71x = 89,080,247.06
  5. Step 5: Solve for x
    x = 89,080,247.06/7,948.71
  6. Step 6: Final answer
    x = 11,206.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.