Home / 13,562.76-20,351.84-7,322.72

Finding the Fourth Proportional to 13,562.76, 20,351.84 and 7,322.72

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Solution

The fourth proportional to 13,562.76, 20,351.84 and 7,322.72 is: 10,988.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.76 : 20,351.84 = 7,322.72 : x
  2. Step 2: Convert to fraction form
    13,562.76/20,351.84 = 7,322.72/x
  3. Step 3: Cross multiply
    13,562.76x = 20,351.84 × 7,322.72
  4. Step 4: Simplify right side
    13,562.76x = 149,030,825.80
  5. Step 5: Solve for x
    x = 149,030,825.80/13,562.76
  6. Step 6: Final answer
    x = 10,988.24

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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.