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Finding the Fourth Proportional to 8,669.79, 13,008.30 and 5,553.30

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Solution

The fourth proportional to 8,669.79, 13,008.30 and 5,553.30 is: 8,332.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669.79 : 13,008.30 = 5,553.30 : x
  2. Step 2: Convert to fraction form
    8,669.79/13,008.30 = 5,553.30/x
  3. Step 3: Cross multiply
    8,669.79x = 13,008.30 × 5,553.30
  4. Step 4: Simplify right side
    8,669.79x = 72,238,992.39
  5. Step 5: Solve for x
    x = 72,238,992.39/8,669.79
  6. Step 6: Final answer
    x = 8,332.27

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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.