Home / 11,413.28-15,776.88-10,948.16

Finding the Fourth Proportional to 11,413.28, 15,776.88 and 10,948.16

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Solution

The fourth proportional to 11,413.28, 15,776.88 and 10,948.16 is: 15,133.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,413.28 : 15,776.88 = 10,948.16 : x
  2. Step 2: Convert to fraction form
    11,413.28/15,776.88 = 10,948.16/x
  3. Step 3: Cross multiply
    11,413.28x = 15,776.88 × 10,948.16
  4. Step 4: Simplify right side
    11,413.28x = 172,727,806.54
  5. Step 5: Solve for x
    x = 172,727,806.54/11,413.28
  6. Step 6: Final answer
    x = 15,133.93

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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.