Home / 13,750.36-20,625.30-4,390.96

Finding the Fourth Proportional to 13,750.36, 20,625.30 and 4,390.96

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Solution

The fourth proportional to 13,750.36, 20,625.30 and 4,390.96 is: 6,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.36 : 20,625.30 = 4,390.96 : x
  2. Step 2: Convert to fraction form
    13,750.36/20,625.30 = 4,390.96/x
  3. Step 3: Cross multiply
    13,750.36x = 20,625.30 × 4,390.96
  4. Step 4: Simplify right side
    13,750.36x = 90,564,867.29
  5. Step 5: Solve for x
    x = 90,564,867.29/13,750.36
  6. Step 6: Final answer
    x = 6,586.36

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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.