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Finding the Fourth Proportional to 8,923.77, 12,289.83 and 8,730.06

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Solution

The fourth proportional to 8,923.77, 12,289.83 and 8,730.06 is: 12,023.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.77 : 12,289.83 = 8,730.06 : x
  2. Step 2: Convert to fraction form
    8,923.77/12,289.83 = 8,730.06/x
  3. Step 3: Cross multiply
    8,923.77x = 12,289.83 × 8,730.06
  4. Step 4: Simplify right side
    8,923.77x = 107,290,874.47
  5. Step 5: Solve for x
    x = 107,290,874.47/8,923.77
  6. Step 6: Final answer
    x = 12,023.04

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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.