Home / 12,445.75-18,665.69-3,560.81

Finding the Fourth Proportional to 12,445.75, 18,665.69 and 3,560.81

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Solution

The fourth proportional to 12,445.75, 18,665.69 and 3,560.81 is: 5,340.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,445.75 : 18,665.69 = 3,560.81 : x
  2. Step 2: Convert to fraction form
    12,445.75/18,665.69 = 3,560.81/x
  3. Step 3: Cross multiply
    12,445.75x = 18,665.69 × 3,560.81
  4. Step 4: Simplify right side
    12,445.75x = 66,464,864.48
  5. Step 5: Solve for x
    x = 66,464,864.48/12,445.75
  6. Step 6: Final answer
    x = 5,340.37

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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.