Home / 13,491.87-20,243.62-7,244.57

Finding the Fourth Proportional to 13,491.87, 20,243.62 and 7,244.57

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Solution

The fourth proportional to 13,491.87, 20,243.62 and 7,244.57 is: 10,869.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.87 : 20,243.62 = 7,244.57 : x
  2. Step 2: Convert to fraction form
    13,491.87/20,243.62 = 7,244.57/x
  3. Step 3: Cross multiply
    13,491.87x = 20,243.62 × 7,244.57
  4. Step 4: Simplify right side
    13,491.87x = 146,656,381.81
  5. Step 5: Solve for x
    x = 146,656,381.81/13,491.87
  6. Step 6: Final answer
    x = 10,869.98

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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.