Home / 13,209.01-18,228.26-7,240.67

Finding the Fourth Proportional to 13,209.01, 18,228.26 and 7,240.67

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Solution

The fourth proportional to 13,209.01, 18,228.26 and 7,240.67 is: 9,992.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.01 : 18,228.26 = 7,240.67 : x
  2. Step 2: Convert to fraction form
    13,209.01/18,228.26 = 7,240.67/x
  3. Step 3: Cross multiply
    13,209.01x = 18,228.26 × 7,240.67
  4. Step 4: Simplify right side
    13,209.01x = 131,984,872.46
  5. Step 5: Solve for x
    x = 131,984,872.46/13,209.01
  6. Step 6: Final answer
    x = 9,992.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.