Home / 13,865.94-19,134.90-7,578.32

Finding the Fourth Proportional to 13,865.94, 19,134.90 and 7,578.32

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Solution

The fourth proportional to 13,865.94, 19,134.90 and 7,578.32 is: 10,458.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.94 : 19,134.90 = 7,578.32 : x
  2. Step 2: Convert to fraction form
    13,865.94/19,134.90 = 7,578.32/x
  3. Step 3: Cross multiply
    13,865.94x = 19,134.90 × 7,578.32
  4. Step 4: Simplify right side
    13,865.94x = 145,010,299.69
  5. Step 5: Solve for x
    x = 145,010,299.69/13,865.94
  6. Step 6: Final answer
    x = 10,458.02

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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.