Home / 13,723.33-18,938.22-7,435.70

Finding the Fourth Proportional to 13,723.33, 18,938.22 and 7,435.70

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Solution

The fourth proportional to 13,723.33, 18,938.22 and 7,435.70 is: 10,261.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.33 : 18,938.22 = 7,435.70 : x
  2. Step 2: Convert to fraction form
    13,723.33/18,938.22 = 7,435.70/x
  3. Step 3: Cross multiply
    13,723.33x = 18,938.22 × 7,435.70
  4. Step 4: Simplify right side
    13,723.33x = 140,818,922.45
  5. Step 5: Solve for x
    x = 140,818,922.45/13,723.33
  6. Step 6: Final answer
    x = 10,261.28

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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.