Home / 12,137.56-18,205.58-4,239.52

Finding the Fourth Proportional to 12,137.56, 18,205.58 and 4,239.52

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Solution

The fourth proportional to 12,137.56, 18,205.58 and 4,239.52 is: 6,359.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.56 : 18,205.58 = 4,239.52 : x
  2. Step 2: Convert to fraction form
    12,137.56/18,205.58 = 4,239.52/x
  3. Step 3: Cross multiply
    12,137.56x = 18,205.58 × 4,239.52
  4. Step 4: Simplify right side
    12,137.56x = 77,182,899.32
  5. Step 5: Solve for x
    x = 77,182,899.32/12,137.56
  6. Step 6: Final answer
    x = 6,359.01

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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.