Home / 13,219.80-19,828.67-4,895.90

Finding the Fourth Proportional to 13,219.80, 19,828.67 and 4,895.90

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Solution

The fourth proportional to 13,219.80, 19,828.67 and 4,895.90 is: 7,343.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.80 : 19,828.67 = 4,895.90 : x
  2. Step 2: Convert to fraction form
    13,219.80/19,828.67 = 4,895.90/x
  3. Step 3: Cross multiply
    13,219.80x = 19,828.67 × 4,895.90
  4. Step 4: Simplify right side
    13,219.80x = 97,079,185.45
  5. Step 5: Solve for x
    x = 97,079,185.45/13,219.80
  6. Step 6: Final answer
    x = 7,343.47

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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.