Home / 13,379.02-20,061.70-4,491.30

Finding the Fourth Proportional to 13,379.02, 20,061.70 and 4,491.30

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Solution

The fourth proportional to 13,379.02, 20,061.70 and 4,491.30 is: 6,734.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.02 : 20,061.70 = 4,491.30 : x
  2. Step 2: Convert to fraction form
    13,379.02/20,061.70 = 4,491.30/x
  3. Step 3: Cross multiply
    13,379.02x = 20,061.70 × 4,491.30
  4. Step 4: Simplify right side
    13,379.02x = 90,103,113.21
  5. Step 5: Solve for x
    x = 90,103,113.21/13,379.02
  6. Step 6: Final answer
    x = 6,734.66

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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.