Home / 13,162.64-18,164.45-7,194.35

Finding the Fourth Proportional to 13,162.64, 18,164.45 and 7,194.35

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Solution

The fourth proportional to 13,162.64, 18,164.45 and 7,194.35 is: 9,928.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.64 : 18,164.45 = 7,194.35 : x
  2. Step 2: Convert to fraction form
    13,162.64/18,164.45 = 7,194.35/x
  3. Step 3: Cross multiply
    13,162.64x = 18,164.45 × 7,194.35
  4. Step 4: Simplify right side
    13,162.64x = 130,681,474.25
  5. Step 5: Solve for x
    x = 130,681,474.25/13,162.64
  6. Step 6: Final answer
    x = 9,928.22

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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.