Home / 15,680.94-23,629.32-12,968.61

Finding the Fourth Proportional to 15,680.94, 23,629.32 and 12,968.61

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Solution

The fourth proportional to 15,680.94, 23,629.32 and 12,968.61 is: 19,542.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,680.94 : 23,629.32 = 12,968.61 : x
  2. Step 2: Convert to fraction form
    15,680.94/23,629.32 = 12,968.61/x
  3. Step 3: Cross multiply
    15,680.94x = 23,629.32 × 12,968.61
  4. Step 4: Simplify right side
    15,680.94x = 306,439,347.04
  5. Step 5: Solve for x
    x = 306,439,347.04/15,680.94
  6. Step 6: Final answer
    x = 19,542.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.