Home / 12,863.21-17,751.56-7,558.31

Finding the Fourth Proportional to 12,863.21, 17,751.56 and 7,558.31

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Solution

The fourth proportional to 12,863.21, 17,751.56 and 7,558.31 is: 10,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.21 : 17,751.56 = 7,558.31 : x
  2. Step 2: Convert to fraction form
    12,863.21/17,751.56 = 7,558.31/x
  3. Step 3: Cross multiply
    12,863.21x = 17,751.56 × 7,558.31
  4. Step 4: Simplify right side
    12,863.21x = 134,171,800.05
  5. Step 5: Solve for x
    x = 134,171,800.05/12,863.21
  6. Step 6: Final answer
    x = 10,430.67

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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.