Home / 9,890.24-13,648.12-5,413.88

Finding the Fourth Proportional to 9,890.24, 13,648.12 and 5,413.88

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Solution

The fourth proportional to 9,890.24, 13,648.12 and 5,413.88 is: 7,470.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,890.24 : 13,648.12 = 5,413.88 : x
  2. Step 2: Convert to fraction form
    9,890.24/13,648.12 = 5,413.88/x
  3. Step 3: Cross multiply
    9,890.24x = 13,648.12 × 5,413.88
  4. Step 4: Simplify right side
    9,890.24x = 73,889,283.91
  5. Step 5: Solve for x
    x = 73,889,283.91/9,890.24
  6. Step 6: Final answer
    x = 7,470.93

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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.