Home / 12,535.12-18,798.36-5,137.48

Finding the Fourth Proportional to 12,535.12, 18,798.36 and 5,137.48

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Solution

The fourth proportional to 12,535.12, 18,798.36 and 5,137.48 is: 7,704.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,535.12 : 18,798.36 = 5,137.48 : x
  2. Step 2: Convert to fraction form
    12,535.12/18,798.36 = 5,137.48/x
  3. Step 3: Cross multiply
    12,535.12x = 18,798.36 × 5,137.48
  4. Step 4: Simplify right side
    12,535.12x = 96,576,198.53
  5. Step 5: Solve for x
    x = 96,576,198.53/12,535.12
  6. Step 6: Final answer
    x = 7,704.45

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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.