Home / 14,145.48-19,512.90-13,144.32

Finding the Fourth Proportional to 14,145.48, 19,512.90 and 13,144.32

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Solution

The fourth proportional to 14,145.48, 19,512.90 and 13,144.32 is: 18,131.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,145.48 : 19,512.90 = 13,144.32 : x
  2. Step 2: Convert to fraction form
    14,145.48/19,512.90 = 13,144.32/x
  3. Step 3: Cross multiply
    14,145.48x = 19,512.90 × 13,144.32
  4. Step 4: Simplify right side
    14,145.48x = 256,483,801.73
  5. Step 5: Solve for x
    x = 256,483,801.73/14,145.48
  6. Step 6: Final answer
    x = 18,131.86

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1.5x scale

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.