Home / 13,285.80-19,944.90-13,188.60

Finding the Fourth Proportional to 13,285.80, 19,944.90 and 13,188.60

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Solution

The fourth proportional to 13,285.80, 19,944.90 and 13,188.60 is: 19,798.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.80 : 19,944.90 = 13,188.60 : x
  2. Step 2: Convert to fraction form
    13,285.80/19,944.90 = 13,188.60/x
  3. Step 3: Cross multiply
    13,285.80x = 19,944.90 × 13,188.60
  4. Step 4: Simplify right side
    13,285.80x = 263,045,308.14
  5. Step 5: Solve for x
    x = 263,045,308.14/13,285.80
  6. Step 6: Final answer
    x = 19,798.98

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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.