Home / 8,974.81-13,461.26-3,131.53

Finding the Fourth Proportional to 8,974.81, 13,461.26 and 3,131.53

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Solution

The fourth proportional to 8,974.81, 13,461.26 and 3,131.53 is: 4,696.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.81 : 13,461.26 = 3,131.53 : x
  2. Step 2: Convert to fraction form
    8,974.81/13,461.26 = 3,131.53/x
  3. Step 3: Cross multiply
    8,974.81x = 13,461.26 × 3,131.53
  4. Step 4: Simplify right side
    8,974.81x = 42,154,323.87
  5. Step 5: Solve for x
    x = 42,154,323.87/8,974.81
  6. Step 6: Final answer
    x = 4,696.96

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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.