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Finding the Fourth Proportional to 7,702.02, 11,531.07 and 7,089.66

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Solution

The fourth proportional to 7,702.02, 11,531.07 and 7,089.66 is: 10,614.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,702.02 : 11,531.07 = 7,089.66 : x
  2. Step 2: Convert to fraction form
    7,702.02/11,531.07 = 7,089.66/x
  3. Step 3: Cross multiply
    7,702.02x = 11,531.07 × 7,089.66
  4. Step 4: Simplify right side
    7,702.02x = 81,751,365.74
  5. Step 5: Solve for x
    x = 81,751,365.74/7,702.02
  6. Step 6: Final answer
    x = 10,614.28

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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.