Home / 13,564.55-20,329.80-7,324.31

Finding the Fourth Proportional to 13,564.55, 20,329.80 and 7,324.31

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Solution

The fourth proportional to 13,564.55, 20,329.80 and 7,324.31 is: 10,977.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,564.55 : 20,329.80 = 7,324.31 : x
  2. Step 2: Convert to fraction form
    13,564.55/20,329.80 = 7,324.31/x
  3. Step 3: Cross multiply
    13,564.55x = 20,329.80 × 7,324.31
  4. Step 4: Simplify right side
    13,564.55x = 148,901,655.79
  5. Step 5: Solve for x
    x = 148,901,655.79/13,564.55
  6. Step 6: Final answer
    x = 10,977.27

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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.