Home / 13,975.08-20,943.54-7,725.84

Finding the Fourth Proportional to 13,975.08, 20,943.54 and 7,725.84

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Solution

The fourth proportional to 13,975.08, 20,943.54 and 7,725.84 is: 11,578.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.08 : 20,943.54 = 7,725.84 : x
  2. Step 2: Convert to fraction form
    13,975.08/20,943.54 = 7,725.84/x
  3. Step 3: Cross multiply
    13,975.08x = 20,943.54 × 7,725.84
  4. Step 4: Simplify right side
    13,975.08x = 161,806,439.07
  5. Step 5: Solve for x
    x = 161,806,439.07/13,975.08
  6. Step 6: Final answer
    x = 11,578.21

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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.