Home / 14,239.99-19,649.72-8,272.91

Finding the Fourth Proportional to 14,239.99, 19,649.72 and 8,272.91

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Solution

The fourth proportional to 14,239.99, 19,649.72 and 8,272.91 is: 11,415.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,239.99 : 19,649.72 = 8,272.91 : x
  2. Step 2: Convert to fraction form
    14,239.99/19,649.72 = 8,272.91/x
  3. Step 3: Cross multiply
    14,239.99x = 19,649.72 × 8,272.91
  4. Step 4: Simplify right side
    14,239.99x = 162,560,323.72
  5. Step 5: Solve for x
    x = 162,560,323.72/14,239.99
  6. Step 6: Final answer
    x = 11,415.77

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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.