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Finding the Fourth Proportional to 8,530.05, 12,808.97 and 5,263.91

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Solution

The fourth proportional to 8,530.05, 12,808.97 and 5,263.91 is: 7,904.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.05 : 12,808.97 = 5,263.91 : x
  2. Step 2: Convert to fraction form
    8,530.05/12,808.97 = 5,263.91/x
  3. Step 3: Cross multiply
    8,530.05x = 12,808.97 × 5,263.91
  4. Step 4: Simplify right side
    8,530.05x = 67,425,265.27
  5. Step 5: Solve for x
    x = 67,425,265.27/8,530.05
  6. Step 6: Final answer
    x = 7,904.44

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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.