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Finding the Fourth Proportional to 14,235.88, 19,645.31 and 8,270.90

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Solution

The fourth proportional to 14,235.88, 19,645.31 and 8,270.90 is: 11,413.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,235.88 : 19,645.31 = 8,270.90 : x
  2. Step 2: Convert to fraction form
    14,235.88/19,645.31 = 8,270.90/x
  3. Step 3: Cross multiply
    14,235.88x = 19,645.31 × 8,270.90
  4. Step 4: Simplify right side
    14,235.88x = 162,484,394.48
  5. Step 5: Solve for x
    x = 162,484,394.48/14,235.88
  6. Step 6: Final answer
    x = 11,413.72

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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.