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Finding the Fourth Proportional to 8,651.94, 12,966.63 and 3,970.26

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Solution

The fourth proportional to 8,651.94, 12,966.63 and 3,970.26 is: 5,950.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,651.94 : 12,966.63 = 3,970.26 : x
  2. Step 2: Convert to fraction form
    8,651.94/12,966.63 = 3,970.26/x
  3. Step 3: Cross multiply
    8,651.94x = 12,966.63 × 3,970.26
  4. Step 4: Simplify right side
    8,651.94x = 51,480,892.42
  5. Step 5: Solve for x
    x = 51,480,892.42/8,651.94
  6. Step 6: Final answer
    x = 5,950.21

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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.