Home / 13,860.75-19,128.24-7,573.53

Finding the Fourth Proportional to 13,860.75, 19,128.24 and 7,573.53

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Solution

The fourth proportional to 13,860.75, 19,128.24 and 7,573.53 is: 10,451.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,860.75 : 19,128.24 = 7,573.53 : x
  2. Step 2: Convert to fraction form
    13,860.75/19,128.24 = 7,573.53/x
  3. Step 3: Cross multiply
    13,860.75x = 19,128.24 × 7,573.53
  4. Step 4: Simplify right side
    13,860.75x = 144,868,299.49
  5. Step 5: Solve for x
    x = 144,868,299.49/13,860.75
  6. Step 6: Final answer
    x = 10,451.69

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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.