Home / 19,115.13-28,674.52-7,429.26

Finding the Fourth Proportional to 19,115.13, 28,674.52 and 7,429.26

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Solution

The fourth proportional to 19,115.13, 28,674.52 and 7,429.26 is: 11,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.13 : 28,674.52 = 7,429.26 : x
  2. Step 2: Convert to fraction form
    19,115.13/28,674.52 = 7,429.26/x
  3. Step 3: Cross multiply
    19,115.13x = 28,674.52 × 7,429.26
  4. Step 4: Simplify right side
    19,115.13x = 213,030,445.88
  5. Step 5: Solve for x
    x = 213,030,445.88/19,115.13
  6. Step 6: Final answer
    x = 11,144.60

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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.