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Finding the Fourth Proportional to 11,509.18, 17,263.78 and 4,931.10

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Solution

The fourth proportional to 11,509.18, 17,263.78 and 4,931.10 is: 7,396.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,509.18 : 17,263.78 = 4,931.10 : x
  2. Step 2: Convert to fraction form
    11,509.18/17,263.78 = 4,931.10/x
  3. Step 3: Cross multiply
    11,509.18x = 17,263.78 × 4,931.10
  4. Step 4: Simplify right side
    11,509.18x = 85,129,425.56
  5. Step 5: Solve for x
    x = 85,129,425.56/11,509.18
  6. Step 6: Final answer
    x = 7,396.65

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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.