Home / 13,880.92-20,823.11-4,521.89

Finding the Fourth Proportional to 13,880.92, 20,823.11 and 4,521.89

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Solution

The fourth proportional to 13,880.92, 20,823.11 and 4,521.89 is: 6,783.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.92 : 20,823.11 = 4,521.89 : x
  2. Step 2: Convert to fraction form
    13,880.92/20,823.11 = 4,521.89/x
  3. Step 3: Cross multiply
    13,880.92x = 20,823.11 × 4,521.89
  4. Step 4: Simplify right side
    13,880.92x = 94,159,767.59
  5. Step 5: Solve for x
    x = 94,159,767.59/13,880.92
  6. Step 6: Final answer
    x = 6,783.40

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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.