Home / 7,980.19-11,012.47-4,443.33

Finding the Fourth Proportional to 7,980.19, 11,012.47 and 4,443.33

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Solution

The fourth proportional to 7,980.19, 11,012.47 and 4,443.33 is: 6,131.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.19 : 11,012.47 = 4,443.33 : x
  2. Step 2: Convert to fraction form
    7,980.19/11,012.47 = 4,443.33/x
  3. Step 3: Cross multiply
    7,980.19x = 11,012.47 × 4,443.33
  4. Step 4: Simplify right side
    7,980.19x = 48,932,038.33
  5. Step 5: Solve for x
    x = 48,932,038.33/7,980.19
  6. Step 6: Final answer
    x = 6,131.69

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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.