Home / 9,413.13-12,990.49-5,164.35

Finding the Fourth Proportional to 9,413.13, 12,990.49 and 5,164.35

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Solution

The fourth proportional to 9,413.13, 12,990.49 and 5,164.35 is: 7,127.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,413.13 : 12,990.49 = 5,164.35 : x
  2. Step 2: Convert to fraction form
    9,413.13/12,990.49 = 5,164.35/x
  3. Step 3: Cross multiply
    9,413.13x = 12,990.49 × 5,164.35
  4. Step 4: Simplify right side
    9,413.13x = 67,087,346.26
  5. Step 5: Solve for x
    x = 67,087,346.26/9,413.13
  6. Step 6: Final answer
    x = 7,127.00

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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.