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Finding the Fourth Proportional to 9,239.36, 12,750.20 and 5,047.60

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Solution

The fourth proportional to 9,239.36, 12,750.20 and 5,047.60 is: 6,965.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,239.36 : 12,750.20 = 5,047.60 : x
  2. Step 2: Convert to fraction form
    9,239.36/12,750.20 = 5,047.60/x
  3. Step 3: Cross multiply
    9,239.36x = 12,750.20 × 5,047.60
  4. Step 4: Simplify right side
    9,239.36x = 64,357,909.52
  5. Step 5: Solve for x
    x = 64,357,909.52/9,239.36
  6. Step 6: Final answer
    x = 6,965.62

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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.