Home / 13,403.70-18,498.42-7,435.38

Finding the Fourth Proportional to 13,403.70, 18,498.42 and 7,435.38

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Solution

The fourth proportional to 13,403.70, 18,498.42 and 7,435.38 is: 10,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.70 : 18,498.42 = 7,435.38 : x
  2. Step 2: Convert to fraction form
    13,403.70/18,498.42 = 7,435.38/x
  3. Step 3: Cross multiply
    13,403.70x = 18,498.42 × 7,435.38
  4. Step 4: Simplify right side
    13,403.70x = 137,542,782.10
  5. Step 5: Solve for x
    x = 137,542,782.10/13,403.70
  6. Step 6: Final answer
    x = 10,261.55

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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.