Home / 13,903.02-19,195.11-12,408.39

Finding the Fourth Proportional to 13,903.02, 19,195.11 and 12,408.39

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Solution

The fourth proportional to 13,903.02, 19,195.11 and 12,408.39 is: 17,131.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.02 : 19,195.11 = 12,408.39 : x
  2. Step 2: Convert to fraction form
    13,903.02/19,195.11 = 12,408.39/x
  3. Step 3: Cross multiply
    13,903.02x = 19,195.11 × 12,408.39
  4. Step 4: Simplify right side
    13,903.02x = 238,180,410.97
  5. Step 5: Solve for x
    x = 238,180,410.97/13,903.02
  6. Step 6: Final answer
    x = 17,131.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.