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Finding the Fourth Proportional to 10,637, 14,679.06 and 6,221

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Solution

The fourth proportional to 10,637, 14,679.06 and 6,221 is: 8,584.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,637 : 14,679.06 = 6,221 : x
  2. Step 2: Convert to fraction form
    10,637/14,679.06 = 6,221/x
  3. Step 3: Cross multiply
    10,637x = 14,679.06 × 6,221
  4. Step 4: Simplify right side
    10,637x = 91,318,432.26
  5. Step 5: Solve for x
    x = 91,318,432.26/10,637
  6. Step 6: Final answer
    x = 8,584.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.