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Finding the Fourth Proportional to 8,656.50, 11,945.98 and 4,677.62

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Solution

The fourth proportional to 8,656.50, 11,945.98 and 4,677.62 is: 6,455.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.50 : 11,945.98 = 4,677.62 : x
  2. Step 2: Convert to fraction form
    8,656.50/11,945.98 = 4,677.62/x
  3. Step 3: Cross multiply
    8,656.50x = 11,945.98 × 4,677.62
  4. Step 4: Simplify right side
    8,656.50x = 55,878,701.08
  5. Step 5: Solve for x
    x = 55,878,701.08/8,656.50
  6. Step 6: Final answer
    x = 6,455.11

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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.