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Finding the Fourth Proportional to 14,008.34, 21,014.06 and 5,687.15

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Solution

The fourth proportional to 14,008.34, 21,014.06 and 5,687.15 is: 8,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,008.34 : 21,014.06 = 5,687.15 : x
  2. Step 2: Convert to fraction form
    14,008.34/21,014.06 = 5,687.15/x
  3. Step 3: Cross multiply
    14,008.34x = 21,014.06 × 5,687.15
  4. Step 4: Simplify right side
    14,008.34x = 119,510,135.43
  5. Step 5: Solve for x
    x = 119,510,135.43/14,008.34
  6. Step 6: Final answer
    x = 8,531.35

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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.