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Finding the Fourth Proportional to 11,048.60, 16,655.62 and 10,315.28

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Solution

The fourth proportional to 11,048.60, 16,655.62 and 10,315.28 is: 15,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,048.60 : 16,655.62 = 10,315.28 : x
  2. Step 2: Convert to fraction form
    11,048.60/16,655.62 = 10,315.28/x
  3. Step 3: Cross multiply
    11,048.60x = 16,655.62 × 10,315.28
  4. Step 4: Simplify right side
    11,048.60x = 171,807,383.87
  5. Step 5: Solve for x
    x = 171,807,383.87/11,048.60
  6. Step 6: Final answer
    x = 15,550.15

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.