Home / 7,809.35-10,777.19-4,451.63

Finding the Fourth Proportional to 7,809.35, 10,777.19 and 4,451.63

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Solution

The fourth proportional to 7,809.35, 10,777.19 and 4,451.63 is: 6,143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,809.35 : 10,777.19 = 4,451.63 : x
  2. Step 2: Convert to fraction form
    7,809.35/10,777.19 = 4,451.63/x
  3. Step 3: Cross multiply
    7,809.35x = 10,777.19 × 4,451.63
  4. Step 4: Simplify right side
    7,809.35x = 47,975,986.18
  5. Step 5: Solve for x
    x = 47,975,986.18/7,809.35
  6. Step 6: Final answer
    x = 6,143.41

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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.