Home / 13,529.18-20,297.89-6,507.21

Finding the Fourth Proportional to 13,529.18, 20,297.89 and 6,507.21

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Solution

The fourth proportional to 13,529.18, 20,297.89 and 6,507.21 is: 9,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.18 : 20,297.89 = 6,507.21 : x
  2. Step 2: Convert to fraction form
    13,529.18/20,297.89 = 6,507.21/x
  3. Step 3: Cross multiply
    13,529.18x = 20,297.89 × 6,507.21
  4. Step 4: Simplify right side
    13,529.18x = 132,082,616.52
  5. Step 5: Solve for x
    x = 132,082,616.52/13,529.18
  6. Step 6: Final answer
    x = 9,762.79

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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.