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Finding the Fourth Proportional to 8,886.86, 12,263.50 and 4,907.91

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Solution

The fourth proportional to 8,886.86, 12,263.50 and 4,907.91 is: 6,772.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.86 : 12,263.50 = 4,907.91 : x
  2. Step 2: Convert to fraction form
    8,886.86/12,263.50 = 4,907.91/x
  3. Step 3: Cross multiply
    8,886.86x = 12,263.50 × 4,907.91
  4. Step 4: Simplify right side
    8,886.86x = 60,188,154.29
  5. Step 5: Solve for x
    x = 60,188,154.29/8,886.86
  6. Step 6: Final answer
    x = 6,772.71

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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.