Home / 13,491.81-20,243.55-7,244.52

Finding the Fourth Proportional to 13,491.81, 20,243.55 and 7,244.52

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Solution

The fourth proportional to 13,491.81, 20,243.55 and 7,244.52 is: 10,869.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.81 : 20,243.55 = 7,244.52 : x
  2. Step 2: Convert to fraction form
    13,491.81/20,243.55 = 7,244.52/x
  3. Step 3: Cross multiply
    13,491.81x = 20,243.55 × 7,244.52
  4. Step 4: Simplify right side
    13,491.81x = 146,654,802.85
  5. Step 5: Solve for x
    x = 146,654,802.85/13,491.81
  6. Step 6: Final answer
    x = 10,869.91

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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.