Home / 19,173.10-28,770.45-7,484.80

Finding the Fourth Proportional to 19,173.10, 28,770.45 and 7,484.80

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Solution

The fourth proportional to 19,173.10, 28,770.45 and 7,484.80 is: 11,231.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,173.10 : 28,770.45 = 7,484.80 : x
  2. Step 2: Convert to fraction form
    19,173.10/28,770.45 = 7,484.80/x
  3. Step 3: Cross multiply
    19,173.10x = 28,770.45 × 7,484.80
  4. Step 4: Simplify right side
    19,173.10x = 215,341,064.16
  5. Step 5: Solve for x
    x = 215,341,064.16/19,173.10
  6. Step 6: Final answer
    x = 11,231.42

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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.