Home / 13,782.44-19,008.60-8,467.76

Finding the Fourth Proportional to 13,782.44, 19,008.60 and 8,467.76

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Solution

The fourth proportional to 13,782.44, 19,008.60 and 8,467.76 is: 11,678.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.44 : 19,008.60 = 8,467.76 : x
  2. Step 2: Convert to fraction form
    13,782.44/19,008.60 = 8,467.76/x
  3. Step 3: Cross multiply
    13,782.44x = 19,008.60 × 8,467.76
  4. Step 4: Simplify right side
    13,782.44x = 160,960,262.74
  5. Step 5: Solve for x
    x = 160,960,262.74/13,782.44
  6. Step 6: Final answer
    x = 11,678.65

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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.