Home / 13,587.80-20,367.39-7,346.12

Finding the Fourth Proportional to 13,587.80, 20,367.39 and 7,346.12

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Solution

The fourth proportional to 13,587.80, 20,367.39 and 7,346.12 is: 11,011.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.80 : 20,367.39 = 7,346.12 : x
  2. Step 2: Convert to fraction form
    13,587.80/20,367.39 = 7,346.12/x
  3. Step 3: Cross multiply
    13,587.80x = 20,367.39 × 7,346.12
  4. Step 4: Simplify right side
    13,587.80x = 149,621,222.37
  5. Step 5: Solve for x
    x = 149,621,222.37/13,587.80
  6. Step 6: Final answer
    x = 11,011.44

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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.