Home / 13,413.84-18,511.20-7,446.06

Finding the Fourth Proportional to 13,413.84, 18,511.20 and 7,446.06

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Solution

The fourth proportional to 13,413.84, 18,511.20 and 7,446.06 is: 10,275.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,413.84 : 18,511.20 = 7,446.06 : x
  2. Step 2: Convert to fraction form
    13,413.84/18,511.20 = 7,446.06/x
  3. Step 3: Cross multiply
    13,413.84x = 18,511.20 × 7,446.06
  4. Step 4: Simplify right side
    13,413.84x = 137,835,505.87
  5. Step 5: Solve for x
    x = 137,835,505.87/13,413.84
  6. Step 6: Final answer
    x = 10,275.62

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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.