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Finding the Fourth Proportional to 14,369.01, 21,553.53 and 3,980.76

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Solution

The fourth proportional to 14,369.01, 21,553.53 and 3,980.76 is: 5,971.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,369.01 : 21,553.53 = 3,980.76 : x
  2. Step 2: Convert to fraction form
    14,369.01/21,553.53 = 3,980.76/x
  3. Step 3: Cross multiply
    14,369.01x = 21,553.53 × 3,980.76
  4. Step 4: Simplify right side
    14,369.01x = 85,799,455.57
  5. Step 5: Solve for x
    x = 85,799,455.57/14,369.01
  6. Step 6: Final answer
    x = 5,971.15

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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.