Home / 13,606.20-20,405.45-5,284.44

Finding the Fourth Proportional to 13,606.20, 20,405.45 and 5,284.44

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Solution

The fourth proportional to 13,606.20, 20,405.45 and 5,284.44 is: 7,925.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,606.20 : 20,405.45 = 5,284.44 : x
  2. Step 2: Convert to fraction form
    13,606.20/20,405.45 = 5,284.44/x
  3. Step 3: Cross multiply
    13,606.20x = 20,405.45 × 5,284.44
  4. Step 4: Simplify right side
    13,606.20x = 107,831,349.78
  5. Step 5: Solve for x
    x = 107,831,349.78/13,606.20
  6. Step 6: Final answer
    x = 7,925.16

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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.