Home / 12,455.45-18,684.24-3,570.81

Finding the Fourth Proportional to 12,455.45, 18,684.24 and 3,570.81

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Solution

The fourth proportional to 12,455.45, 18,684.24 and 3,570.81 is: 5,356.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.45 : 18,684.24 = 3,570.81 : x
  2. Step 2: Convert to fraction form
    12,455.45/18,684.24 = 3,570.81/x
  3. Step 3: Cross multiply
    12,455.45x = 18,684.24 × 3,570.81
  4. Step 4: Simplify right side
    12,455.45x = 66,717,871.03
  5. Step 5: Solve for x
    x = 66,717,871.03/12,455.45
  6. Step 6: Final answer
    x = 5,356.52

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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.