Home / 13,269.06-19,903.59-3,408.35

Finding the Fourth Proportional to 13,269.06, 19,903.59 and 3,408.35

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Solution

The fourth proportional to 13,269.06, 19,903.59 and 3,408.35 is: 5,112.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,269.06 : 19,903.59 = 3,408.35 : x
  2. Step 2: Convert to fraction form
    13,269.06/19,903.59 = 3,408.35/x
  3. Step 3: Cross multiply
    13,269.06x = 19,903.59 × 3,408.35
  4. Step 4: Simplify right side
    13,269.06x = 67,838,376.10
  5. Step 5: Solve for x
    x = 67,838,376.10/13,269.06
  6. Step 6: Final answer
    x = 5,112.52

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1.5x scale

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.