Home / 13,197.23-19,768.30-7,915.49

Finding the Fourth Proportional to 13,197.23, 19,768.30 and 7,915.49

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Solution

The fourth proportional to 13,197.23, 19,768.30 and 7,915.49 is: 11,856.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.23 : 19,768.30 = 7,915.49 : x
  2. Step 2: Convert to fraction form
    13,197.23/19,768.30 = 7,915.49/x
  3. Step 3: Cross multiply
    13,197.23x = 19,768.30 × 7,915.49
  4. Step 4: Simplify right side
    13,197.23x = 156,475,711.76
  5. Step 5: Solve for x
    x = 156,475,711.76/13,197.23
  6. Step 6: Final answer
    x = 11,856.71

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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.