Home / 13,725.68-18,941.44-7,438.06

Finding the Fourth Proportional to 13,725.68, 18,941.44 and 7,438.06

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Solution

The fourth proportional to 13,725.68, 18,941.44 and 7,438.06 is: 10,264.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.68 : 18,941.44 = 7,438.06 : x
  2. Step 2: Convert to fraction form
    13,725.68/18,941.44 = 7,438.06/x
  3. Step 3: Cross multiply
    13,725.68x = 18,941.44 × 7,438.06
  4. Step 4: Simplify right side
    13,725.68x = 140,887,435.31
  5. Step 5: Solve for x
    x = 140,887,435.31/13,725.68
  6. Step 6: Final answer
    x = 10,264.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.