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Finding the Fourth Proportional to 8,807.24, 13,231.50 and 8,309.08

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Solution

The fourth proportional to 8,807.24, 13,231.50 and 8,309.08 is: 12,483.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.24 : 13,231.50 = 8,309.08 : x
  2. Step 2: Convert to fraction form
    8,807.24/13,231.50 = 8,309.08/x
  3. Step 3: Cross multiply
    8,807.24x = 13,231.50 × 8,309.08
  4. Step 4: Simplify right side
    8,807.24x = 109,941,592.02
  5. Step 5: Solve for x
    x = 109,941,592.02/8,807.24
  6. Step 6: Final answer
    x = 12,483.09

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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.