Home / 13,938.84-19,236.06-7,651.56

Finding the Fourth Proportional to 13,938.84, 19,236.06 and 7,651.56

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Solution

The fourth proportional to 13,938.84, 19,236.06 and 7,651.56 is: 10,559.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.84 : 19,236.06 = 7,651.56 : x
  2. Step 2: Convert to fraction form
    13,938.84/19,236.06 = 7,651.56/x
  3. Step 3: Cross multiply
    13,938.84x = 19,236.06 × 7,651.56
  4. Step 4: Simplify right side
    13,938.84x = 147,185,867.25
  5. Step 5: Solve for x
    x = 147,185,867.25/13,938.84
  6. Step 6: Final answer
    x = 10,559.41

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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.