Home / 12,435.78-18,651.83-4,536.45

Finding the Fourth Proportional to 12,435.78, 18,651.83 and 4,536.45

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Solution

The fourth proportional to 12,435.78, 18,651.83 and 4,536.45 is: 6,804.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,435.78 : 18,651.83 = 4,536.45 : x
  2. Step 2: Convert to fraction form
    12,435.78/18,651.83 = 4,536.45/x
  3. Step 3: Cross multiply
    12,435.78x = 18,651.83 × 4,536.45
  4. Step 4: Simplify right side
    12,435.78x = 84,612,989.60
  5. Step 5: Solve for x
    x = 84,612,989.60/12,435.78
  6. Step 6: Final answer
    x = 6,804.00

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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.