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Finding the Fourth Proportional to 9,153, 12,633.57 and 8,793.36

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Solution

The fourth proportional to 9,153, 12,633.57 and 8,793.36 is: 12,137.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,153 : 12,633.57 = 8,793.36 : x
  2. Step 2: Convert to fraction form
    9,153/12,633.57 = 8,793.36/x
  3. Step 3: Cross multiply
    9,153x = 12,633.57 × 8,793.36
  4. Step 4: Simplify right side
    9,153x = 111,091,529.10
  5. Step 5: Solve for x
    x = 111,091,529.10/9,153
  6. Step 6: Final answer
    x = 12,137.17

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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.