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Finding the Fourth Proportional to 9,612.45, 14,420.70 and 3,039.30

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Solution

The fourth proportional to 9,612.45, 14,420.70 and 3,039.30 is: 4,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.45 : 14,420.70 = 3,039.30 : x
  2. Step 2: Convert to fraction form
    9,612.45/14,420.70 = 3,039.30/x
  3. Step 3: Cross multiply
    9,612.45x = 14,420.70 × 3,039.30
  4. Step 4: Simplify right side
    9,612.45x = 43,828,833.51
  5. Step 5: Solve for x
    x = 43,828,833.51/9,612.45
  6. Step 6: Final answer
    x = 4,559.59

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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.