Home / 13,040.98-19,561.57-3,180.24

Finding the Fourth Proportional to 13,040.98, 19,561.57 and 3,180.24

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Solution

The fourth proportional to 13,040.98, 19,561.57 and 3,180.24 is: 4,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,040.98 : 19,561.57 = 3,180.24 : x
  2. Step 2: Convert to fraction form
    13,040.98/19,561.57 = 3,180.24/x
  3. Step 3: Cross multiply
    13,040.98x = 19,561.57 × 3,180.24
  4. Step 4: Simplify right side
    13,040.98x = 62,210,479.43
  5. Step 5: Solve for x
    x = 62,210,479.43/13,040.98
  6. Step 6: Final answer
    x = 4,770.38

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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.