Home / 13,952.07-20,931.21-4,090.95

Finding the Fourth Proportional to 13,952.07, 20,931.21 and 4,090.95

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Solution

The fourth proportional to 13,952.07, 20,931.21 and 4,090.95 is: 6,137.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.07 : 20,931.21 = 4,090.95 : x
  2. Step 2: Convert to fraction form
    13,952.07/20,931.21 = 4,090.95/x
  3. Step 3: Cross multiply
    13,952.07x = 20,931.21 × 4,090.95
  4. Step 4: Simplify right side
    13,952.07x = 85,628,533.55
  5. Step 5: Solve for x
    x = 85,628,533.55/13,952.07
  6. Step 6: Final answer
    x = 6,137.34

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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.