Home / 19,129.55-28,682.57-6,644.21

Finding the Fourth Proportional to 19,129.55, 28,682.57 and 6,644.21

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Solution

The fourth proportional to 19,129.55, 28,682.57 and 6,644.21 is: 9,962.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,129.55 : 28,682.57 = 6,644.21 : x
  2. Step 2: Convert to fraction form
    19,129.55/28,682.57 = 6,644.21/x
  3. Step 3: Cross multiply
    19,129.55x = 28,682.57 × 6,644.21
  4. Step 4: Simplify right side
    19,129.55x = 190,572,891.62
  5. Step 5: Solve for x
    x = 190,572,891.62/19,129.55
  6. Step 6: Final answer
    x = 9,962.23

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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.