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Finding the Fourth Proportional to 9,069, 12,515.56 and 5,291.58

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Solution

The fourth proportional to 9,069, 12,515.56 and 5,291.58 is: 7,302.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,069 : 12,515.56 = 5,291.58 : x
  2. Step 2: Convert to fraction form
    9,069/12,515.56 = 5,291.58/x
  3. Step 3: Cross multiply
    9,069x = 12,515.56 × 5,291.58
  4. Step 4: Simplify right side
    9,069x = 66,227,086.98
  5. Step 5: Solve for x
    x = 66,227,086.98/9,069
  6. Step 6: Final answer
    x = 7,302.58

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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.