Home / 13,266.02-19,899.30-3,405.35

Finding the Fourth Proportional to 13,266.02, 19,899.30 and 3,405.35

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Solution

The fourth proportional to 13,266.02, 19,899.30 and 3,405.35 is: 5,108.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.02 : 19,899.30 = 3,405.35 : x
  2. Step 2: Convert to fraction form
    13,266.02/19,899.30 = 3,405.35/x
  3. Step 3: Cross multiply
    13,266.02x = 19,899.30 × 3,405.35
  4. Step 4: Simplify right side
    13,266.02x = 67,764,081.26
  5. Step 5: Solve for x
    x = 67,764,081.26/13,266.02
  6. Step 6: Final answer
    x = 5,108.09

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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.