Home / 6,621.30-9,919.80-6,183.90

Finding the Fourth Proportional to 6,621.30, 9,919.80 and 6,183.90

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Solution

The fourth proportional to 6,621.30, 9,919.80 and 6,183.90 is: 9,264.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,621.30 : 9,919.80 = 6,183.90 : x
  2. Step 2: Convert to fraction form
    6,621.30/9,919.80 = 6,183.90/x
  3. Step 3: Cross multiply
    6,621.30x = 9,919.80 × 6,183.90
  4. Step 4: Simplify right side
    6,621.30x = 61,343,051.22
  5. Step 5: Solve for x
    x = 61,343,051.22/6,621.30
  6. Step 6: Final answer
    x = 9,264.50

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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.