Home / 8,645.80-12,975.96-4,488.36

Finding the Fourth Proportional to 8,645.80, 12,975.96 and 4,488.36

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Solution

The fourth proportional to 8,645.80, 12,975.96 and 4,488.36 is: 6,736.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,645.80 : 12,975.96 = 4,488.36 : x
  2. Step 2: Convert to fraction form
    8,645.80/12,975.96 = 4,488.36/x
  3. Step 3: Cross multiply
    8,645.80x = 12,975.96 × 4,488.36
  4. Step 4: Simplify right side
    8,645.80x = 58,240,779.83
  5. Step 5: Solve for x
    x = 58,240,779.83/8,645.80
  6. Step 6: Final answer
    x = 6,736.31

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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.