Home / 7,979.16-11,012.31-4,442.70

Finding the Fourth Proportional to 7,979.16, 11,012.31 and 4,442.70

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Solution

The fourth proportional to 7,979.16, 11,012.31 and 4,442.70 is: 6,131.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.16 : 11,012.31 = 4,442.70 : x
  2. Step 2: Convert to fraction form
    7,979.16/11,012.31 = 4,442.70/x
  3. Step 3: Cross multiply
    7,979.16x = 11,012.31 × 4,442.70
  4. Step 4: Simplify right side
    7,979.16x = 48,924,389.64
  5. Step 5: Solve for x
    x = 48,924,389.64/7,979.16
  6. Step 6: Final answer
    x = 6,131.52

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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.