Home / 13,295.40-19,945.80-4,531.20

Finding the Fourth Proportional to 13,295.40, 19,945.80 and 4,531.20

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Solution

The fourth proportional to 13,295.40, 19,945.80 and 4,531.20 is: 6,797.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,295.40 : 19,945.80 = 4,531.20 : x
  2. Step 2: Convert to fraction form
    13,295.40/19,945.80 = 4,531.20/x
  3. Step 3: Cross multiply
    13,295.40x = 19,945.80 × 4,531.20
  4. Step 4: Simplify right side
    13,295.40x = 90,378,408.96
  5. Step 5: Solve for x
    x = 90,378,408.96/13,295.40
  6. Step 6: Final answer
    x = 6,797.72

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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.