Home / 14,102.31-21,154.53-4,742.36

Finding the Fourth Proportional to 14,102.31, 21,154.53 and 4,742.36

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Solution

The fourth proportional to 14,102.31, 21,154.53 and 4,742.36 is: 7,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,102.31 : 21,154.53 = 4,742.36 : x
  2. Step 2: Convert to fraction form
    14,102.31/21,154.53 = 4,742.36/x
  3. Step 3: Cross multiply
    14,102.31x = 21,154.53 × 4,742.36
  4. Step 4: Simplify right side
    14,102.31x = 100,322,388.23
  5. Step 5: Solve for x
    x = 100,322,388.23/14,102.31
  6. Step 6: Final answer
    x = 7,113.90

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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.