Home / 6,939.76-10,412.08-4,339.68

Finding the Fourth Proportional to 6,939.76, 10,412.08 and 4,339.68

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Solution

The fourth proportional to 6,939.76, 10,412.08 and 4,339.68 is: 6,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.76 : 10,412.08 = 4,339.68 : x
  2. Step 2: Convert to fraction form
    6,939.76/10,412.08 = 4,339.68/x
  3. Step 3: Cross multiply
    6,939.76x = 10,412.08 × 4,339.68
  4. Step 4: Simplify right side
    6,939.76x = 45,185,095.33
  5. Step 5: Solve for x
    x = 45,185,095.33/6,939.76
  6. Step 6: Final answer
    x = 6,511.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.