Home / 18,741.56-28,112.32-7,653.46

Finding the Fourth Proportional to 18,741.56, 28,112.32 and 7,653.46

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Solution

The fourth proportional to 18,741.56, 28,112.32 and 7,653.46 is: 11,480.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,741.56 : 28,112.32 = 7,653.46 : x
  2. Step 2: Convert to fraction form
    18,741.56/28,112.32 = 7,653.46/x
  3. Step 3: Cross multiply
    18,741.56x = 28,112.32 × 7,653.46
  4. Step 4: Simplify right side
    18,741.56x = 215,156,516.63
  5. Step 5: Solve for x
    x = 215,156,516.63/18,741.56
  6. Step 6: Final answer
    x = 11,480.18

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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.