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Finding the Fourth Proportional to 9,103.66, 13,659.74 and 4,718.72

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Solution

The fourth proportional to 9,103.66, 13,659.74 and 4,718.72 is: 7,080.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,103.66 : 13,659.74 = 4,718.72 : x
  2. Step 2: Convert to fraction form
    9,103.66/13,659.74 = 4,718.72/x
  3. Step 3: Cross multiply
    9,103.66x = 13,659.74 × 4,718.72
  4. Step 4: Simplify right side
    9,103.66x = 64,456,516.58
  5. Step 5: Solve for x
    x = 64,456,516.58/9,103.66
  6. Step 6: Final answer
    x = 7,080.29

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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.