Home / 45,646.84-68,469.18-11,912.32

Finding the Fourth Proportional to 45,646.84, 68,469.18 and 11,912.32

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Solution

The fourth proportional to 45,646.84, 68,469.18 and 11,912.32 is: 17,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,646.84 : 68,469.18 = 11,912.32 : x
  2. Step 2: Convert to fraction form
    45,646.84/68,469.18 = 11,912.32/x
  3. Step 3: Cross multiply
    45,646.84x = 68,469.18 × 11,912.32
  4. Step 4: Simplify right side
    45,646.84x = 815,626,782.30
  5. Step 5: Solve for x
    x = 815,626,782.30/45,646.84
  6. Step 6: Final answer
    x = 17,868.20

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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.