Home / 13,385.18-20,076.54-4,620.16

Finding the Fourth Proportional to 13,385.18, 20,076.54 and 4,620.16

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Solution

The fourth proportional to 13,385.18, 20,076.54 and 4,620.16 is: 6,929.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,385.18 : 20,076.54 = 4,620.16 : x
  2. Step 2: Convert to fraction form
    13,385.18/20,076.54 = 4,620.16/x
  3. Step 3: Cross multiply
    13,385.18x = 20,076.54 × 4,620.16
  4. Step 4: Simplify right side
    13,385.18x = 92,756,827.05
  5. Step 5: Solve for x
    x = 92,756,827.05/13,385.18
  6. Step 6: Final answer
    x = 6,929.82

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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.