Home / 14,181.28-19,560-10,405.60

Finding the Fourth Proportional to 14,181.28, 19,560 and 10,405.60

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Solution

The fourth proportional to 14,181.28, 19,560 and 10,405.60 is: 14,352.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,181.28 : 19,560 = 10,405.60 : x
  2. Step 2: Convert to fraction form
    14,181.28/19,560 = 10,405.60/x
  3. Step 3: Cross multiply
    14,181.28x = 19,560 × 10,405.60
  4. Step 4: Simplify right side
    14,181.28x = 203,533,536
  5. Step 5: Solve for x
    x = 203,533,536/14,181.28
  6. Step 6: Final answer
    x = 14,352.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.