Home / 14,101.90-21,155.18-4,742.75

Finding the Fourth Proportional to 14,101.90, 21,155.18 and 4,742.75

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Solution

The fourth proportional to 14,101.90, 21,155.18 and 4,742.75 is: 7,114.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,101.90 : 21,155.18 = 4,742.75 : x
  2. Step 2: Convert to fraction form
    14,101.90/21,155.18 = 4,742.75/x
  3. Step 3: Cross multiply
    14,101.90x = 21,155.18 × 4,742.75
  4. Step 4: Simplify right side
    14,101.90x = 100,333,759.12
  5. Step 5: Solve for x
    x = 100,333,759.12/14,101.90
  6. Step 6: Final answer
    x = 7,114.91

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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.