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Finding the Fourth Proportional to 14,070.99, 21,091.29 and 9,144.16

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Solution

The fourth proportional to 14,070.99, 21,091.29 and 9,144.16 is: 13,706.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,070.99 : 21,091.29 = 9,144.16 : x
  2. Step 2: Convert to fraction form
    14,070.99/21,091.29 = 9,144.16/x
  3. Step 3: Cross multiply
    14,070.99x = 21,091.29 × 9,144.16
  4. Step 4: Simplify right side
    14,070.99x = 192,862,130.37
  5. Step 5: Solve for x
    x = 192,862,130.37/14,070.99
  6. Step 6: Final answer
    x = 13,706.37

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.