Home / 19,276.75-28,915.35-7,581.76

Finding the Fourth Proportional to 19,276.75, 28,915.35 and 7,581.76

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Solution

The fourth proportional to 19,276.75, 28,915.35 and 7,581.76 is: 11,372.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.75 : 28,915.35 = 7,581.76 : x
  2. Step 2: Convert to fraction form
    19,276.75/28,915.35 = 7,581.76/x
  3. Step 3: Cross multiply
    19,276.75x = 28,915.35 × 7,581.76
  4. Step 4: Simplify right side
    19,276.75x = 219,229,244.02
  5. Step 5: Solve for x
    x = 219,229,244.02/19,276.75
  6. Step 6: Final answer
    x = 11,372.73

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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.