Home / 9,165.08-12,640.27-7,704.35

Finding the Fourth Proportional to 9,165.08, 12,640.27 and 7,704.35

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Solution

The fourth proportional to 9,165.08, 12,640.27 and 7,704.35 is: 10,625.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.08 : 12,640.27 = 7,704.35 : x
  2. Step 2: Convert to fraction form
    9,165.08/12,640.27 = 7,704.35/x
  3. Step 3: Cross multiply
    9,165.08x = 12,640.27 × 7,704.35
  4. Step 4: Simplify right side
    9,165.08x = 97,385,043.56
  5. Step 5: Solve for x
    x = 97,385,043.56/9,165.08
  6. Step 6: Final answer
    x = 10,625.66

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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.