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Finding the Fourth Proportional to 9,769.20, 14,632.20 and 7,570.80

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Solution

The fourth proportional to 9,769.20, 14,632.20 and 7,570.80 is: 11,339.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,769.20 : 14,632.20 = 7,570.80 : x
  2. Step 2: Convert to fraction form
    9,769.20/14,632.20 = 7,570.80/x
  3. Step 3: Cross multiply
    9,769.20x = 14,632.20 × 7,570.80
  4. Step 4: Simplify right side
    9,769.20x = 110,777,459.76
  5. Step 5: Solve for x
    x = 110,777,459.76/9,769.20
  6. Step 6: Final answer
    x = 11,339.46

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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.