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Finding the Fourth Proportional to 8,529.87, 12,789.29 and 3,598.18

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Solution

The fourth proportional to 8,529.87, 12,789.29 and 3,598.18 is: 5,394.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,529.87 : 12,789.29 = 3,598.18 : x
  2. Step 2: Convert to fraction form
    8,529.87/12,789.29 = 3,598.18/x
  3. Step 3: Cross multiply
    8,529.87x = 12,789.29 × 3,598.18
  4. Step 4: Simplify right side
    8,529.87x = 46,018,167.49
  5. Step 5: Solve for x
    x = 46,018,167.49/8,529.87
  6. Step 6: Final answer
    x = 5,394.95

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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.