Home / 13,712.36-20,576.23-7,472.81

Finding the Fourth Proportional to 13,712.36, 20,576.23 and 7,472.81

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Solution

The fourth proportional to 13,712.36, 20,576.23 and 7,472.81 is: 11,213.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.36 : 20,576.23 = 7,472.81 : x
  2. Step 2: Convert to fraction form
    13,712.36/20,576.23 = 7,472.81/x
  3. Step 3: Cross multiply
    13,712.36x = 20,576.23 × 7,472.81
  4. Step 4: Simplify right side
    13,712.36x = 153,762,257.31
  5. Step 5: Solve for x
    x = 153,762,257.31/13,712.36
  6. Step 6: Final answer
    x = 11,213.41

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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.