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Finding the Fourth Proportional to 14,048.16, 19,386.50 and 8,079.43

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Solution

The fourth proportional to 14,048.16, 19,386.50 and 8,079.43 is: 11,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,048.16 : 19,386.50 = 8,079.43 : x
  2. Step 2: Convert to fraction form
    14,048.16/19,386.50 = 8,079.43/x
  3. Step 3: Cross multiply
    14,048.16x = 19,386.50 × 8,079.43
  4. Step 4: Simplify right side
    14,048.16x = 156,631,955.78
  5. Step 5: Solve for x
    x = 156,631,955.78/14,048.16
  6. Step 6: Final answer
    x = 11,149.64

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