Home / 7,964.22-10,990.53-4,427.35

Finding the Fourth Proportional to 7,964.22, 10,990.53 and 4,427.35

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Solution

The fourth proportional to 7,964.22, 10,990.53 and 4,427.35 is: 6,109.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.22 : 10,990.53 = 4,427.35 : x
  2. Step 2: Convert to fraction form
    7,964.22/10,990.53 = 4,427.35/x
  3. Step 3: Cross multiply
    7,964.22x = 10,990.53 × 4,427.35
  4. Step 4: Simplify right side
    7,964.22x = 48,658,923.00
  5. Step 5: Solve for x
    x = 48,658,923.00/7,964.22
  6. Step 6: Final answer
    x = 6,109.69

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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.