Home / 13,938.75-19,235.61-7,651.26

Finding the Fourth Proportional to 13,938.75, 19,235.61 and 7,651.26

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Solution

The fourth proportional to 13,938.75, 19,235.61 and 7,651.26 is: 10,558.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.75 : 19,235.61 = 7,651.26 : x
  2. Step 2: Convert to fraction form
    13,938.75/19,235.61 = 7,651.26/x
  3. Step 3: Cross multiply
    13,938.75x = 19,235.61 × 7,651.26
  4. Step 4: Simplify right side
    13,938.75x = 147,176,653.37
  5. Step 5: Solve for x
    x = 147,176,653.37/13,938.75
  6. Step 6: Final answer
    x = 10,558.81

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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.