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Finding the Fourth Proportional to 8,658.59, 11,953.44 and 6,664.77

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Solution

The fourth proportional to 8,658.59, 11,953.44 and 6,664.77 is: 9,200.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.59 : 11,953.44 = 6,664.77 : x
  2. Step 2: Convert to fraction form
    8,658.59/11,953.44 = 6,664.77/x
  3. Step 3: Cross multiply
    8,658.59x = 11,953.44 × 6,664.77
  4. Step 4: Simplify right side
    8,658.59x = 79,666,928.31
  5. Step 5: Solve for x
    x = 79,666,928.31/8,658.59
  6. Step 6: Final answer
    x = 9,200.92

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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.