Home / 8,288.72-11,436.36-4,930.64

Finding the Fourth Proportional to 8,288.72, 11,436.36 and 4,930.64

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Solution

The fourth proportional to 8,288.72, 11,436.36 and 4,930.64 is: 6,803.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,288.72 : 11,436.36 = 4,930.64 : x
  2. Step 2: Convert to fraction form
    8,288.72/11,436.36 = 4,930.64/x
  3. Step 3: Cross multiply
    8,288.72x = 11,436.36 × 4,930.64
  4. Step 4: Simplify right side
    8,288.72x = 56,388,574.07
  5. Step 5: Solve for x
    x = 56,388,574.07/8,288.72
  6. Step 6: Final answer
    x = 6,803.05

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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.