Home / 19,181.79-28,770.26-7,503.21

Finding the Fourth Proportional to 19,181.79, 28,770.26 and 7,503.21

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Solution

The fourth proportional to 19,181.79, 28,770.26 and 7,503.21 is: 11,253.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.79 : 28,770.26 = 7,503.21 : x
  2. Step 2: Convert to fraction form
    19,181.79/28,770.26 = 7,503.21/x
  3. Step 3: Cross multiply
    19,181.79x = 28,770.26 × 7,503.21
  4. Step 4: Simplify right side
    19,181.79x = 215,869,265.02
  5. Step 5: Solve for x
    x = 215,869,265.02/19,181.79
  6. Step 6: Final answer
    x = 11,253.86

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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.