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Finding the Fourth Proportional to 9,598.40, 13,243.20 and 7,611.20

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Solution

The fourth proportional to 9,598.40, 13,243.20 and 7,611.20 is: 10,501.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,598.40 : 13,243.20 = 7,611.20 : x
  2. Step 2: Convert to fraction form
    9,598.40/13,243.20 = 7,611.20/x
  3. Step 3: Cross multiply
    9,598.40x = 13,243.20 × 7,611.20
  4. Step 4: Simplify right side
    9,598.40x = 100,796,643.84
  5. Step 5: Solve for x
    x = 100,796,643.84/9,598.40
  6. Step 6: Final answer
    x = 10,501.40

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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.