Home / 17,125.94-25,639.71-12,653.53

Finding the Fourth Proportional to 17,125.94, 25,639.71 and 12,653.53

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Solution

The fourth proportional to 17,125.94, 25,639.71 and 12,653.53 is: 18,943.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,125.94 : 25,639.71 = 12,653.53 : x
  2. Step 2: Convert to fraction form
    17,125.94/25,639.71 = 12,653.53/x
  3. Step 3: Cross multiply
    17,125.94x = 25,639.71 × 12,653.53
  4. Step 4: Simplify right side
    17,125.94x = 324,432,728.13
  5. Step 5: Solve for x
    x = 324,432,728.13/17,125.94
  6. Step 6: Final answer
    x = 18,943.93

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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.