Home / 6,723.81-9,278.96-4,071.47

Finding the Fourth Proportional to 6,723.81, 9,278.96 and 4,071.47

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Solution

The fourth proportional to 6,723.81, 9,278.96 and 4,071.47 is: 5,618.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,723.81 : 9,278.96 = 4,071.47 : x
  2. Step 2: Convert to fraction form
    6,723.81/9,278.96 = 4,071.47/x
  3. Step 3: Cross multiply
    6,723.81x = 9,278.96 × 4,071.47
  4. Step 4: Simplify right side
    6,723.81x = 37,778,940.52
  5. Step 5: Solve for x
    x = 37,778,940.52/6,723.81
  6. Step 6: Final answer
    x = 5,618.68

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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.