Home / 8,485.72-11,709.66-4,759

Finding the Fourth Proportional to 8,485.72, 11,709.66 and 4,759

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Solution

The fourth proportional to 8,485.72, 11,709.66 and 4,759 is: 6,567.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.72 : 11,709.66 = 4,759 : x
  2. Step 2: Convert to fraction form
    8,485.72/11,709.66 = 4,759/x
  3. Step 3: Cross multiply
    8,485.72x = 11,709.66 × 4,759
  4. Step 4: Simplify right side
    8,485.72x = 55,726,271.94
  5. Step 5: Solve for x
    x = 55,726,271.94/8,485.72
  6. Step 6: Final answer
    x = 6,567.06

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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.