Home / 13,712.79-20,564.93-4,946.56

Finding the Fourth Proportional to 13,712.79, 20,564.93 and 4,946.56

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Solution

The fourth proportional to 13,712.79, 20,564.93 and 4,946.56 is: 7,418.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.79 : 20,564.93 = 4,946.56 : x
  2. Step 2: Convert to fraction form
    13,712.79/20,564.93 = 4,946.56/x
  3. Step 3: Cross multiply
    13,712.79x = 20,564.93 × 4,946.56
  4. Step 4: Simplify right side
    13,712.79x = 101,725,660.14
  5. Step 5: Solve for x
    x = 101,725,660.14/13,712.79
  6. Step 6: Final answer
    x = 7,418.31

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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.