Home / 12,455.32-18,684.06-3,570.69

Finding the Fourth Proportional to 12,455.32, 18,684.06 and 3,570.69

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Solution

The fourth proportional to 12,455.32, 18,684.06 and 3,570.69 is: 5,356.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.32 : 18,684.06 = 3,570.69 : x
  2. Step 2: Convert to fraction form
    12,455.32/18,684.06 = 3,570.69/x
  3. Step 3: Cross multiply
    12,455.32x = 18,684.06 × 3,570.69
  4. Step 4: Simplify right side
    12,455.32x = 66,714,986.20
  5. Step 5: Solve for x
    x = 66,714,986.20/12,455.32
  6. Step 6: Final answer
    x = 5,356.34

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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.