Home / 6,378.74-9,559.84-4,722.09

Finding the Fourth Proportional to 6,378.74, 9,559.84 and 4,722.09

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Solution

The fourth proportional to 6,378.74, 9,559.84 and 4,722.09 is: 7,077.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,378.74 : 9,559.84 = 4,722.09 : x
  2. Step 2: Convert to fraction form
    6,378.74/9,559.84 = 4,722.09/x
  3. Step 3: Cross multiply
    6,378.74x = 9,559.84 × 4,722.09
  4. Step 4: Simplify right side
    6,378.74x = 45,142,424.87
  5. Step 5: Solve for x
    x = 45,142,424.87/6,378.74
  6. Step 6: Final answer
    x = 7,077.01

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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.