Home / 8,464.28-11,678.82-5,107.64

Finding the Fourth Proportional to 8,464.28, 11,678.82 and 5,107.64

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Solution

The fourth proportional to 8,464.28, 11,678.82 and 5,107.64 is: 7,047.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,464.28 : 11,678.82 = 5,107.64 : x
  2. Step 2: Convert to fraction form
    8,464.28/11,678.82 = 5,107.64/x
  3. Step 3: Cross multiply
    8,464.28x = 11,678.82 × 5,107.64
  4. Step 4: Simplify right side
    8,464.28x = 59,651,208.18
  5. Step 5: Solve for x
    x = 59,651,208.18/8,464.28
  6. Step 6: Final answer
    x = 7,047.40

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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.