Home / 14,727.69-20,318.63-9,413.28

Finding the Fourth Proportional to 14,727.69, 20,318.63 and 9,413.28

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Solution

The fourth proportional to 14,727.69, 20,318.63 and 9,413.28 is: 12,986.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,727.69 : 20,318.63 = 9,413.28 : x
  2. Step 2: Convert to fraction form
    14,727.69/20,318.63 = 9,413.28/x
  3. Step 3: Cross multiply
    14,727.69x = 20,318.63 × 9,413.28
  4. Step 4: Simplify right side
    14,727.69x = 191,264,906.34
  5. Step 5: Solve for x
    x = 191,264,906.34/14,727.69
  6. Step 6: Final answer
    x = 12,986.76

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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.