Home / 13,188.48-19,775.88-5,789.58

Finding the Fourth Proportional to 13,188.48, 19,775.88 and 5,789.58

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Solution

The fourth proportional to 13,188.48, 19,775.88 and 5,789.58 is: 8,681.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,188.48 : 19,775.88 = 5,789.58 : x
  2. Step 2: Convert to fraction form
    13,188.48/19,775.88 = 5,789.58/x
  3. Step 3: Cross multiply
    13,188.48x = 19,775.88 × 5,789.58
  4. Step 4: Simplify right side
    13,188.48x = 114,494,039.33
  5. Step 5: Solve for x
    x = 114,494,039.33/13,188.48
  6. Step 6: Final answer
    x = 8,681.37

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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.