Home / 13,515.94-20,274.95-3,655.27

Finding the Fourth Proportional to 13,515.94, 20,274.95 and 3,655.27

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Solution

The fourth proportional to 13,515.94, 20,274.95 and 3,655.27 is: 5,483.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515.94 : 20,274.95 = 3,655.27 : x
  2. Step 2: Convert to fraction form
    13,515.94/20,274.95 = 3,655.27/x
  3. Step 3: Cross multiply
    13,515.94x = 20,274.95 × 3,655.27
  4. Step 4: Simplify right side
    13,515.94x = 74,110,416.49
  5. Step 5: Solve for x
    x = 74,110,416.49/13,515.94
  6. Step 6: Final answer
    x = 5,483.19

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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.