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Finding the Fourth Proportional to 8,656.66, 11,951.85 and 6,663.52

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Solution

The fourth proportional to 8,656.66, 11,951.85 and 6,663.52 is: 9,200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,656.66 : 11,951.85 = 6,663.52 : x
  2. Step 2: Convert to fraction form
    8,656.66/11,951.85 = 6,663.52/x
  3. Step 3: Cross multiply
    8,656.66x = 11,951.85 × 6,663.52
  4. Step 4: Simplify right side
    8,656.66x = 79,641,391.51
  5. Step 5: Solve for x
    x = 79,641,391.51/8,656.66
  6. Step 6: Final answer
    x = 9,200.01

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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.