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Finding the Fourth Proportional to 7,931.66, 11,873.18 and 7,098.98

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Solution

The fourth proportional to 7,931.66, 11,873.18 and 7,098.98 is: 10,626.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.66 : 11,873.18 = 7,098.98 : x
  2. Step 2: Convert to fraction form
    7,931.66/11,873.18 = 7,098.98/x
  3. Step 3: Cross multiply
    7,931.66x = 11,873.18 × 7,098.98
  4. Step 4: Simplify right side
    7,931.66x = 84,287,467.36
  5. Step 5: Solve for x
    x = 84,287,467.36/7,931.66
  6. Step 6: Final answer
    x = 10,626.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.