Home / 9,979.14-14,968.86-4,783.80

Finding the Fourth Proportional to 9,979.14, 14,968.86 and 4,783.80

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Solution

The fourth proportional to 9,979.14, 14,968.86 and 4,783.80 is: 7,175.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.14 : 14,968.86 = 4,783.80 : x
  2. Step 2: Convert to fraction form
    9,979.14/14,968.86 = 4,783.80/x
  3. Step 3: Cross multiply
    9,979.14x = 14,968.86 × 4,783.80
  4. Step 4: Simplify right side
    9,979.14x = 71,608,032.47
  5. Step 5: Solve for x
    x = 71,608,032.47/9,979.14
  6. Step 6: Final answer
    x = 7,175.77

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1.5x scale

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.