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Finding the Fourth Proportional to 14,048.76, 19,387.28 and 7,761.12

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Solution

The fourth proportional to 14,048.76, 19,387.28 and 7,761.12 is: 10,710.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,048.76 : 19,387.28 = 7,761.12 : x
  2. Step 2: Convert to fraction form
    14,048.76/19,387.28 = 7,761.12/x
  3. Step 3: Cross multiply
    14,048.76x = 19,387.28 × 7,761.12
  4. Step 4: Simplify right side
    14,048.76x = 150,467,006.55
  5. Step 5: Solve for x
    x = 150,467,006.55/14,048.76
  6. Step 6: Final answer
    x = 10,710.34

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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.