Home / 7,980.83-10,995.19-6,301.61

Finding the Fourth Proportional to 7,980.83, 10,995.19 and 6,301.61

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Solution

The fourth proportional to 7,980.83, 10,995.19 and 6,301.61 is: 8,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.83 : 10,995.19 = 6,301.61 : x
  2. Step 2: Convert to fraction form
    7,980.83/10,995.19 = 6,301.61/x
  3. Step 3: Cross multiply
    7,980.83x = 10,995.19 × 6,301.61
  4. Step 4: Simplify right side
    7,980.83x = 69,287,467.05
  5. Step 5: Solve for x
    x = 69,287,467.05/7,980.83
  6. Step 6: Final answer
    x = 8,681.74

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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.