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Finding the Fourth Proportional to 7,708.49, 11,553 and 6,425.45

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Solution

The fourth proportional to 7,708.49, 11,553 and 6,425.45 is: 9,630.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,708.49 : 11,553 = 6,425.45 : x
  2. Step 2: Convert to fraction form
    7,708.49/11,553 = 6,425.45/x
  3. Step 3: Cross multiply
    7,708.49x = 11,553 × 6,425.45
  4. Step 4: Simplify right side
    7,708.49x = 74,233,223.85
  5. Step 5: Solve for x
    x = 74,233,223.85/7,708.49
  6. Step 6: Final answer
    x = 9,630.06

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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.