Home / 14,099.08-19,456.74-7,811.56

Finding the Fourth Proportional to 14,099.08, 19,456.74 and 7,811.56

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Solution

The fourth proportional to 14,099.08, 19,456.74 and 7,811.56 is: 10,779.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,099.08 : 19,456.74 = 7,811.56 : x
  2. Step 2: Convert to fraction form
    14,099.08/19,456.74 = 7,811.56/x
  3. Step 3: Cross multiply
    14,099.08x = 19,456.74 × 7,811.56
  4. Step 4: Simplify right side
    14,099.08x = 151,987,491.91
  5. Step 5: Solve for x
    x = 151,987,491.91/14,099.08
  6. Step 6: Final answer
    x = 10,779.96

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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.