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Finding the Fourth Proportional to 13,483.01, 20,124.70 and 12,651.95

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Solution

The fourth proportional to 13,483.01, 20,124.70 and 12,651.95 is: 18,884.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.01 : 20,124.70 = 12,651.95 : x
  2. Step 2: Convert to fraction form
    13,483.01/20,124.70 = 12,651.95/x
  3. Step 3: Cross multiply
    13,483.01x = 20,124.70 × 12,651.95
  4. Step 4: Simplify right side
    13,483.01x = 254,616,716.85
  5. Step 5: Solve for x
    x = 254,616,716.85/13,483.01
  6. Step 6: Final answer
    x = 18,884.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.