Home / 13,386.86-20,083.35-4,503.30

Finding the Fourth Proportional to 13,386.86, 20,083.35 and 4,503.30

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Solution

The fourth proportional to 13,386.86, 20,083.35 and 4,503.30 is: 6,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,386.86 : 20,083.35 = 4,503.30 : x
  2. Step 2: Convert to fraction form
    13,386.86/20,083.35 = 4,503.30/x
  3. Step 3: Cross multiply
    13,386.86x = 20,083.35 × 4,503.30
  4. Step 4: Simplify right side
    13,386.86x = 90,441,350.06
  5. Step 5: Solve for x
    x = 90,441,350.06/13,386.86
  6. Step 6: Final answer
    x = 6,755.98

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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.