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Finding the Fourth Proportional to 9,168.66, 13,686.67 and 8,483.87

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Solution

The fourth proportional to 9,168.66, 13,686.67 and 8,483.87 is: 12,664.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.66 : 13,686.67 = 8,483.87 : x
  2. Step 2: Convert to fraction form
    9,168.66/13,686.67 = 8,483.87/x
  3. Step 3: Cross multiply
    9,168.66x = 13,686.67 × 8,483.87
  4. Step 4: Simplify right side
    9,168.66x = 116,115,973.83
  5. Step 5: Solve for x
    x = 116,115,973.83/9,168.66
  6. Step 6: Final answer
    x = 12,664.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.