Home / 13,821.03-20,728.63-4,461.93

Finding the Fourth Proportional to 13,821.03, 20,728.63 and 4,461.93

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Solution

The fourth proportional to 13,821.03, 20,728.63 and 4,461.93 is: 6,691.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.03 : 20,728.63 = 4,461.93 : x
  2. Step 2: Convert to fraction form
    13,821.03/20,728.63 = 4,461.93/x
  3. Step 3: Cross multiply
    13,821.03x = 20,728.63 × 4,461.93
  4. Step 4: Simplify right side
    13,821.03x = 92,489,696.06
  5. Step 5: Solve for x
    x = 92,489,696.06/13,821.03
  6. Step 6: Final answer
    x = 6,691.95

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1.5x scale

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.