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Finding the Fourth Proportional to 8,803.20, 13,223.04 and 8,507.94

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Solution

The fourth proportional to 8,803.20, 13,223.04 and 8,507.94 is: 12,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,803.20 : 13,223.04 = 8,507.94 : x
  2. Step 2: Convert to fraction form
    8,803.20/13,223.04 = 8,507.94/x
  3. Step 3: Cross multiply
    8,803.20x = 13,223.04 × 8,507.94
  4. Step 4: Simplify right side
    8,803.20x = 112,500,830.94
  5. Step 5: Solve for x
    x = 112,500,830.94/8,803.20
  6. Step 6: Final answer
    x = 12,779.54

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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.