Home / 7,979.63-11,004.72-4,995.74

Finding the Fourth Proportional to 7,979.63, 11,004.72 and 4,995.74

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Solution

The fourth proportional to 7,979.63, 11,004.72 and 4,995.74 is: 6,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.63 : 11,004.72 = 4,995.74 : x
  2. Step 2: Convert to fraction form
    7,979.63/11,004.72 = 4,995.74/x
  3. Step 3: Cross multiply
    7,979.63x = 11,004.72 × 4,995.74
  4. Step 4: Simplify right side
    7,979.63x = 54,976,719.89
  5. Step 5: Solve for x
    x = 54,976,719.89/7,979.63
  6. Step 6: Final answer
    x = 6,889.63

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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.