Home / 19,079.88-28,613.75-7,984.50

Finding the Fourth Proportional to 19,079.88, 28,613.75 and 7,984.50

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Solution

The fourth proportional to 19,079.88, 28,613.75 and 7,984.50 is: 11,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,079.88 : 28,613.75 = 7,984.50 : x
  2. Step 2: Convert to fraction form
    19,079.88/28,613.75 = 7,984.50/x
  3. Step 3: Cross multiply
    19,079.88x = 28,613.75 × 7,984.50
  4. Step 4: Simplify right side
    19,079.88x = 228,466,446.95
  5. Step 5: Solve for x
    x = 228,466,446.95/19,079.88
  6. Step 6: Final answer
    x = 11,974.21

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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.