Home / 9,979.15-14,968.86-4,783.81

Finding the Fourth Proportional to 9,979.15, 14,968.86 and 4,783.81

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Solution

The fourth proportional to 9,979.15, 14,968.86 and 4,783.81 is: 7,175.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.15 : 14,968.86 = 4,783.81 : x
  2. Step 2: Convert to fraction form
    9,979.15/14,968.86 = 4,783.81/x
  3. Step 3: Cross multiply
    9,979.15x = 14,968.86 × 4,783.81
  4. Step 4: Simplify right side
    9,979.15x = 71,608,182.16
  5. Step 5: Solve for x
    x = 71,608,182.16/9,979.15
  6. Step 6: Final answer
    x = 7,175.78

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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.