Home / 13,866.15-19,135.28-7,578.52

Finding the Fourth Proportional to 13,866.15, 19,135.28 and 7,578.52

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Solution

The fourth proportional to 13,866.15, 19,135.28 and 7,578.52 is: 10,458.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.15 : 19,135.28 = 7,578.52 : x
  2. Step 2: Convert to fraction form
    13,866.15/19,135.28 = 7,578.52/x
  3. Step 3: Cross multiply
    13,866.15x = 19,135.28 × 7,578.52
  4. Step 4: Simplify right side
    13,866.15x = 145,017,102.19
  5. Step 5: Solve for x
    x = 145,017,102.19/13,866.15
  6. Step 6: Final answer
    x = 10,458.36

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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.