Home / 14,256.85-21,385.23-3,868.60

Finding the Fourth Proportional to 14,256.85, 21,385.23 and 3,868.60

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Solution

The fourth proportional to 14,256.85, 21,385.23 and 3,868.60 is: 5,802.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,256.85 : 21,385.23 = 3,868.60 : x
  2. Step 2: Convert to fraction form
    14,256.85/21,385.23 = 3,868.60/x
  3. Step 3: Cross multiply
    14,256.85x = 21,385.23 × 3,868.60
  4. Step 4: Simplify right side
    14,256.85x = 82,730,900.78
  5. Step 5: Solve for x
    x = 82,730,900.78/14,256.85
  6. Step 6: Final answer
    x = 5,802.89

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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.