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Finding the Fourth Proportional to 9,165.71, 13,749.03 and 2,591.34

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Solution

The fourth proportional to 9,165.71, 13,749.03 and 2,591.34 is: 3,887.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.71 : 13,749.03 = 2,591.34 : x
  2. Step 2: Convert to fraction form
    9,165.71/13,749.03 = 2,591.34/x
  3. Step 3: Cross multiply
    9,165.71x = 13,749.03 × 2,591.34
  4. Step 4: Simplify right side
    9,165.71x = 35,628,411.40
  5. Step 5: Solve for x
    x = 35,628,411.40/9,165.71
  6. Step 6: Final answer
    x = 3,887.14

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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.