Home / 13,530.24-20,281.92-7,674.72

Finding the Fourth Proportional to 13,530.24, 20,281.92 and 7,674.72

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Solution

The fourth proportional to 13,530.24, 20,281.92 and 7,674.72 is: 11,504.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.24 : 20,281.92 = 7,674.72 : x
  2. Step 2: Convert to fraction form
    13,530.24/20,281.92 = 7,674.72/x
  3. Step 3: Cross multiply
    13,530.24x = 20,281.92 × 7,674.72
  4. Step 4: Simplify right side
    13,530.24x = 155,658,057.06
  5. Step 5: Solve for x
    x = 155,658,057.06/13,530.24
  6. Step 6: Final answer
    x = 11,504.46

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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.