Home / 12,537.58-18,807.62-4,642.21

Finding the Fourth Proportional to 12,537.58, 18,807.62 and 4,642.21

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Solution

The fourth proportional to 12,537.58, 18,807.62 and 4,642.21 is: 6,963.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,537.58 : 18,807.62 = 4,642.21 : x
  2. Step 2: Convert to fraction form
    12,537.58/18,807.62 = 4,642.21/x
  3. Step 3: Cross multiply
    12,537.58x = 18,807.62 × 4,642.21
  4. Step 4: Simplify right side
    12,537.58x = 87,308,921.64
  5. Step 5: Solve for x
    x = 87,308,921.64/12,537.58
  6. Step 6: Final answer
    x = 6,963.78

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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.