Home / 13,518.63-20,274.69-3,657.99

Finding the Fourth Proportional to 13,518.63, 20,274.69 and 3,657.99

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Solution

The fourth proportional to 13,518.63, 20,274.69 and 3,657.99 is: 5,486.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.63 : 20,274.69 = 3,657.99 : x
  2. Step 2: Convert to fraction form
    13,518.63/20,274.69 = 3,657.99/x
  3. Step 3: Cross multiply
    13,518.63x = 20,274.69 × 3,657.99
  4. Step 4: Simplify right side
    13,518.63x = 74,164,613.27
  5. Step 5: Solve for x
    x = 74,164,613.27/13,518.63
  6. Step 6: Final answer
    x = 5,486.10

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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.