Home / 7,629.36-11,423.44-4,990.32

Finding the Fourth Proportional to 7,629.36, 11,423.44 and 4,990.32

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Solution

The fourth proportional to 7,629.36, 11,423.44 and 4,990.32 is: 7,472.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.36 : 11,423.44 = 4,990.32 : x
  2. Step 2: Convert to fraction form
    7,629.36/11,423.44 = 4,990.32/x
  3. Step 3: Cross multiply
    7,629.36x = 11,423.44 × 4,990.32
  4. Step 4: Simplify right side
    7,629.36x = 57,006,621.10
  5. Step 5: Solve for x
    x = 57,006,621.10/7,629.36
  6. Step 6: Final answer
    x = 7,472.01

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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.