Home / 19,082.76-28,635.28-7,988.48

Finding the Fourth Proportional to 19,082.76, 28,635.28 and 7,988.48

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Solution

The fourth proportional to 19,082.76, 28,635.28 and 7,988.48 is: 11,987.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,082.76 : 28,635.28 = 7,988.48 : x
  2. Step 2: Convert to fraction form
    19,082.76/28,635.28 = 7,988.48/x
  3. Step 3: Cross multiply
    19,082.76x = 28,635.28 × 7,988.48
  4. Step 4: Simplify right side
    19,082.76x = 228,752,361.57
  5. Step 5: Solve for x
    x = 228,752,361.57/19,082.76
  6. Step 6: Final answer
    x = 11,987.38

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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.