Home / 9,382.08-12,945.96-7,971.48

Finding the Fourth Proportional to 9,382.08, 12,945.96 and 7,971.48

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Solution

The fourth proportional to 9,382.08, 12,945.96 and 7,971.48 is: 10,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,382.08 : 12,945.96 = 7,971.48 : x
  2. Step 2: Convert to fraction form
    9,382.08/12,945.96 = 7,971.48/x
  3. Step 3: Cross multiply
    9,382.08x = 12,945.96 × 7,971.48
  4. Step 4: Simplify right side
    9,382.08x = 103,198,461.22
  5. Step 5: Solve for x
    x = 103,198,461.22/9,382.08
  6. Step 6: Final answer
    x = 10,999.53

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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.