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Finding the Fourth Proportional to 9,495.80, 13,104.21 and 5,188.95

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Solution

The fourth proportional to 9,495.80, 13,104.21 and 5,188.95 is: 7,160.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,495.80 : 13,104.21 = 5,188.95 : x
  2. Step 2: Convert to fraction form
    9,495.80/13,104.21 = 5,188.95/x
  3. Step 3: Cross multiply
    9,495.80x = 13,104.21 × 5,188.95
  4. Step 4: Simplify right side
    9,495.80x = 67,997,064.53
  5. Step 5: Solve for x
    x = 67,997,064.53/9,495.80
  6. Step 6: Final answer
    x = 7,160.75

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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.