Home / 13,018.35-19,526.13-3,658.68

Finding the Fourth Proportional to 13,018.35, 19,526.13 and 3,658.68

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Solution

The fourth proportional to 13,018.35, 19,526.13 and 3,658.68 is: 5,487.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.35 : 19,526.13 = 3,658.68 : x
  2. Step 2: Convert to fraction form
    13,018.35/19,526.13 = 3,658.68/x
  3. Step 3: Cross multiply
    13,018.35x = 19,526.13 × 3,658.68
  4. Step 4: Simplify right side
    13,018.35x = 71,439,861.31
  5. Step 5: Solve for x
    x = 71,439,861.31/13,018.35
  6. Step 6: Final answer
    x = 5,487.63

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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.