Home / 14,145.21-21,187.44-13,317.14

Finding the Fourth Proportional to 14,145.21, 21,187.44 and 13,317.14

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Solution

The fourth proportional to 14,145.21, 21,187.44 and 13,317.14 is: 19,947.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.21 : 21,187.44 = 13,317.14 : x
  2. Step 2: Convert to fraction form
    14,145.21/21,187.44 = 13,317.14/x
  3. Step 3: Cross multiply
    14,145.21x = 21,187.44 × 13,317.14
  4. Step 4: Simplify right side
    14,145.21x = 282,156,104.72
  5. Step 5: Solve for x
    x = 282,156,104.72/14,145.21
  6. Step 6: Final answer
    x = 19,947.11

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1.5x scale

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.