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Finding the Fourth Proportional to 8,957.08, 12,362.12 and 6,447.50

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Solution

The fourth proportional to 8,957.08, 12,362.12 and 6,447.50 is: 8,898.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.08 : 12,362.12 = 6,447.50 : x
  2. Step 2: Convert to fraction form
    8,957.08/12,362.12 = 6,447.50/x
  3. Step 3: Cross multiply
    8,957.08x = 12,362.12 × 6,447.50
  4. Step 4: Simplify right side
    8,957.08x = 79,704,745.19
  5. Step 5: Solve for x
    x = 79,704,745.19/8,957.08
  6. Step 6: Final answer
    x = 8,898.52

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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.