Home / 13,176-19,764.02-5,384.80

Finding the Fourth Proportional to 13,176, 19,764.02 and 5,384.80

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Solution

The fourth proportional to 13,176, 19,764.02 and 5,384.80 is: 8,077.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176 : 19,764.02 = 5,384.80 : x
  2. Step 2: Convert to fraction form
    13,176/19,764.02 = 5,384.80/x
  3. Step 3: Cross multiply
    13,176x = 19,764.02 × 5,384.80
  4. Step 4: Simplify right side
    13,176x = 106,425,294.90
  5. Step 5: Solve for x
    x = 106,425,294.90/13,176
  6. Step 6: Final answer
    x = 8,077.21

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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.