Home / 13,278.08-19,909.24-5,878.80

Finding the Fourth Proportional to 13,278.08, 19,909.24 and 5,878.80

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Solution

The fourth proportional to 13,278.08, 19,909.24 and 5,878.80 is: 8,814.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.08 : 19,909.24 = 5,878.80 : x
  2. Step 2: Convert to fraction form
    13,278.08/19,909.24 = 5,878.80/x
  3. Step 3: Cross multiply
    13,278.08x = 19,909.24 × 5,878.80
  4. Step 4: Simplify right side
    13,278.08x = 117,042,440.11
  5. Step 5: Solve for x
    x = 117,042,440.11/13,278.08
  6. Step 6: Final answer
    x = 8,814.71

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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.