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Finding the Fourth Proportional to 12,961.95, 17,883.02 and 7,295.79

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Solution

The fourth proportional to 12,961.95, 17,883.02 and 7,295.79 is: 10,065.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,961.95 : 17,883.02 = 7,295.79 : x
  2. Step 2: Convert to fraction form
    12,961.95/17,883.02 = 7,295.79/x
  3. Step 3: Cross multiply
    12,961.95x = 17,883.02 × 7,295.79
  4. Step 4: Simplify right side
    12,961.95x = 130,470,722.01
  5. Step 5: Solve for x
    x = 130,470,722.01/12,961.95
  6. Step 6: Final answer
    x = 10,065.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.