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Finding the Fourth Proportional to 8,697.11, 12,001.91 and 4,718.22

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Solution

The fourth proportional to 8,697.11, 12,001.91 and 4,718.22 is: 6,511.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.11 : 12,001.91 = 4,718.22 : x
  2. Step 2: Convert to fraction form
    8,697.11/12,001.91 = 4,718.22/x
  3. Step 3: Cross multiply
    8,697.11x = 12,001.91 × 4,718.22
  4. Step 4: Simplify right side
    8,697.11x = 56,627,583.20
  5. Step 5: Solve for x
    x = 56,627,583.20/8,697.11
  6. Step 6: Final answer
    x = 6,511.08

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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.