Home / 13,240.56-19,860.14-3,379.24

Finding the Fourth Proportional to 13,240.56, 19,860.14 and 3,379.24

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Solution

The fourth proportional to 13,240.56, 19,860.14 and 3,379.24 is: 5,068.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,240.56 : 19,860.14 = 3,379.24 : x
  2. Step 2: Convert to fraction form
    13,240.56/19,860.14 = 3,379.24/x
  3. Step 3: Cross multiply
    13,240.56x = 19,860.14 × 3,379.24
  4. Step 4: Simplify right side
    13,240.56x = 67,112,179.49
  5. Step 5: Solve for x
    x = 67,112,179.49/13,240.56
  6. Step 6: Final answer
    x = 5,068.68

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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.