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Finding the Fourth Proportional to 8,984.52, 12,396.65 and 5,208.30

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Solution

The fourth proportional to 8,984.52, 12,396.65 and 5,208.30 is: 7,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,984.52 : 12,396.65 = 5,208.30 : x
  2. Step 2: Convert to fraction form
    8,984.52/12,396.65 = 5,208.30/x
  3. Step 3: Cross multiply
    8,984.52x = 12,396.65 × 5,208.30
  4. Step 4: Simplify right side
    8,984.52x = 64,565,446.15
  5. Step 5: Solve for x
    x = 64,565,446.15/8,984.52
  6. Step 6: Final answer
    x = 7,186.30

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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.