Home / 13,866.06-19,135.16-7,578.43

Finding the Fourth Proportional to 13,866.06, 19,135.16 and 7,578.43

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Solution

The fourth proportional to 13,866.06, 19,135.16 and 7,578.43 is: 10,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.06 : 19,135.16 = 7,578.43 : x
  2. Step 2: Convert to fraction form
    13,866.06/19,135.16 = 7,578.43/x
  3. Step 3: Cross multiply
    13,866.06x = 19,135.16 × 7,578.43
  4. Step 4: Simplify right side
    13,866.06x = 145,014,432.71
  5. Step 5: Solve for x
    x = 145,014,432.71/13,866.06
  6. Step 6: Final answer
    x = 10,458.23

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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.