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Finding the Fourth Proportional to 8,783.12, 13,153.97 and 7,622.59

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Solution

The fourth proportional to 8,783.12, 13,153.97 and 7,622.59 is: 11,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,783.12 : 13,153.97 = 7,622.59 : x
  2. Step 2: Convert to fraction form
    8,783.12/13,153.97 = 7,622.59/x
  3. Step 3: Cross multiply
    8,783.12x = 13,153.97 × 7,622.59
  4. Step 4: Simplify right side
    8,783.12x = 100,267,320.18
  5. Step 5: Solve for x
    x = 100,267,320.18/8,783.12
  6. Step 6: Final answer
    x = 11,415.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.