Home / 12,741.12-19,111.68-5,814.24

Finding the Fourth Proportional to 12,741.12, 19,111.68 and 5,814.24

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Solution

The fourth proportional to 12,741.12, 19,111.68 and 5,814.24 is: 8,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.12 : 19,111.68 = 5,814.24 : x
  2. Step 2: Convert to fraction form
    12,741.12/19,111.68 = 5,814.24/x
  3. Step 3: Cross multiply
    12,741.12x = 19,111.68 × 5,814.24
  4. Step 4: Simplify right side
    12,741.12x = 111,119,894.32
  5. Step 5: Solve for x
    x = 111,119,894.32/12,741.12
  6. Step 6: Final answer
    x = 8,721.36

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Similar ratio
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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.