Home / 12,187.44-18,281.52-8,435.52

Finding the Fourth Proportional to 12,187.44, 18,281.52 and 8,435.52

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Solution

The fourth proportional to 12,187.44, 18,281.52 and 8,435.52 is: 12,653.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,187.44 : 18,281.52 = 8,435.52 : x
  2. Step 2: Convert to fraction form
    12,187.44/18,281.52 = 8,435.52/x
  3. Step 3: Cross multiply
    12,187.44x = 18,281.52 × 8,435.52
  4. Step 4: Simplify right side
    12,187.44x = 154,214,127.59
  5. Step 5: Solve for x
    x = 154,214,127.59/12,187.44
  6. Step 6: Final answer
    x = 12,653.53

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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.