Home / 13,260.24-19,890.36-7,413.66

Finding the Fourth Proportional to 13,260.24, 19,890.36 and 7,413.66

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Solution

The fourth proportional to 13,260.24, 19,890.36 and 7,413.66 is: 11,120.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.24 : 19,890.36 = 7,413.66 : x
  2. Step 2: Convert to fraction form
    13,260.24/19,890.36 = 7,413.66/x
  3. Step 3: Cross multiply
    13,260.24x = 19,890.36 × 7,413.66
  4. Step 4: Simplify right side
    13,260.24x = 147,460,366.32
  5. Step 5: Solve for x
    x = 147,460,366.32/13,260.24
  6. Step 6: Final answer
    x = 11,120.49

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.