Home / 8,455.24-11,667.80-4,678.26

Finding the Fourth Proportional to 8,455.24, 11,667.80 and 4,678.26

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Solution

The fourth proportional to 8,455.24, 11,667.80 and 4,678.26 is: 6,455.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.24 : 11,667.80 = 4,678.26 : x
  2. Step 2: Convert to fraction form
    8,455.24/11,667.80 = 4,678.26/x
  3. Step 3: Cross multiply
    8,455.24x = 11,667.80 × 4,678.26
  4. Step 4: Simplify right side
    8,455.24x = 54,584,943.65
  5. Step 5: Solve for x
    x = 54,584,943.65/8,455.24
  6. Step 6: Final answer
    x = 6,455.76

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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.