Home / 19,104.90-28,661.40-5,776.80

Finding the Fourth Proportional to 19,104.90, 28,661.40 and 5,776.80

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Solution

The fourth proportional to 19,104.90, 28,661.40 and 5,776.80 is: 8,666.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,104.90 : 28,661.40 = 5,776.80 : x
  2. Step 2: Convert to fraction form
    19,104.90/28,661.40 = 5,776.80/x
  3. Step 3: Cross multiply
    19,104.90x = 28,661.40 × 5,776.80
  4. Step 4: Simplify right side
    19,104.90x = 165,571,175.52
  5. Step 5: Solve for x
    x = 165,571,175.52/19,104.90
  6. Step 6: Final answer
    x = 8,666.42

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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.