Home / 14,138.09-21,192.38-4,774.88

Finding the Fourth Proportional to 14,138.09, 21,192.38 and 4,774.88

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Solution

The fourth proportional to 14,138.09, 21,192.38 and 4,774.88 is: 7,157.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.09 : 21,192.38 = 4,774.88 : x
  2. Step 2: Convert to fraction form
    14,138.09/21,192.38 = 4,774.88/x
  3. Step 3: Cross multiply
    14,138.09x = 21,192.38 × 4,774.88
  4. Step 4: Simplify right side
    14,138.09x = 101,191,047.54
  5. Step 5: Solve for x
    x = 101,191,047.54/14,138.09
  6. Step 6: Final answer
    x = 7,157.34

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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.