Home / 12,585.36-18,866.24-4,259.55

Finding the Fourth Proportional to 12,585.36, 18,866.24 and 4,259.55

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Solution

The fourth proportional to 12,585.36, 18,866.24 and 4,259.55 is: 6,385.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.36 : 18,866.24 = 4,259.55 : x
  2. Step 2: Convert to fraction form
    12,585.36/18,866.24 = 4,259.55/x
  3. Step 3: Cross multiply
    12,585.36x = 18,866.24 × 4,259.55
  4. Step 4: Simplify right side
    12,585.36x = 80,361,608.91
  5. Step 5: Solve for x
    x = 80,361,608.91/12,585.36
  6. Step 6: Final answer
    x = 6,385.33

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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.