Home / 14,413.68-19,889.88-8,124.72

Finding the Fourth Proportional to 14,413.68, 19,889.88 and 8,124.72

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Solution

The fourth proportional to 14,413.68, 19,889.88 and 8,124.72 is: 11,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,413.68 : 19,889.88 = 8,124.72 : x
  2. Step 2: Convert to fraction form
    14,413.68/19,889.88 = 8,124.72/x
  3. Step 3: Cross multiply
    14,413.68x = 19,889.88 × 8,124.72
  4. Step 4: Simplify right side
    14,413.68x = 161,599,705.83
  5. Step 5: Solve for x
    x = 161,599,705.83/14,413.68
  6. Step 6: Final answer
    x = 11,211.55

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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.