Home / 13,491.51-20,237.27-3,630.81

Finding the Fourth Proportional to 13,491.51, 20,237.27 and 3,630.81

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Solution

The fourth proportional to 13,491.51, 20,237.27 and 3,630.81 is: 5,446.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.51 : 20,237.27 = 3,630.81 : x
  2. Step 2: Convert to fraction form
    13,491.51/20,237.27 = 3,630.81/x
  3. Step 3: Cross multiply
    13,491.51x = 20,237.27 × 3,630.81
  4. Step 4: Simplify right side
    13,491.51x = 73,477,664.13
  5. Step 5: Solve for x
    x = 73,477,664.13/13,491.51
  6. Step 6: Final answer
    x = 5,446.22

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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.