Home / 12,968.64-19,329.57-12,230.46

Finding the Fourth Proportional to 12,968.64, 19,329.57 and 12,230.46

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Solution

The fourth proportional to 12,968.64, 19,329.57 and 12,230.46 is: 18,229.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,968.64 : 19,329.57 = 12,230.46 : x
  2. Step 2: Convert to fraction form
    12,968.64/19,329.57 = 12,230.46/x
  3. Step 3: Cross multiply
    12,968.64x = 19,329.57 × 12,230.46
  4. Step 4: Simplify right side
    12,968.64x = 236,409,532.70
  5. Step 5: Solve for x
    x = 236,409,532.70/12,968.64
  6. Step 6: Final answer
    x = 18,229.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.