Home / 13,054.92-18,015.78-7,086.60

Finding the Fourth Proportional to 13,054.92, 18,015.78 and 7,086.60

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Solution

The fourth proportional to 13,054.92, 18,015.78 and 7,086.60 is: 9,779.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.92 : 18,015.78 = 7,086.60 : x
  2. Step 2: Convert to fraction form
    13,054.92/18,015.78 = 7,086.60/x
  3. Step 3: Cross multiply
    13,054.92x = 18,015.78 × 7,086.60
  4. Step 4: Simplify right side
    13,054.92x = 127,670,626.55
  5. Step 5: Solve for x
    x = 127,670,626.55/13,054.92
  6. Step 6: Final answer
    x = 9,779.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.