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Finding the Fourth Proportional to 8,589.63, 12,887.52 and 5,298.89

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Solution

The fourth proportional to 8,589.63, 12,887.52 and 5,298.89 is: 7,950.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.63 : 12,887.52 = 5,298.89 : x
  2. Step 2: Convert to fraction form
    8,589.63/12,887.52 = 5,298.89/x
  3. Step 3: Cross multiply
    8,589.63x = 12,887.52 × 5,298.89
  4. Step 4: Simplify right side
    8,589.63x = 68,289,524.36
  5. Step 5: Solve for x
    x = 68,289,524.36/8,589.63
  6. Step 6: Final answer
    x = 7,950.23

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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.