Home / 9,825.40-13,563.69-6,290.67

Finding the Fourth Proportional to 9,825.40, 13,563.69 and 6,290.67

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Solution

The fourth proportional to 9,825.40, 13,563.69 and 6,290.67 is: 8,684.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,825.40 : 13,563.69 = 6,290.67 : x
  2. Step 2: Convert to fraction form
    9,825.40/13,563.69 = 6,290.67/x
  3. Step 3: Cross multiply
    9,825.40x = 13,563.69 × 6,290.67
  4. Step 4: Simplify right side
    9,825.40x = 85,324,697.77
  5. Step 5: Solve for x
    x = 85,324,697.77/9,825.40
  6. Step 6: Final answer
    x = 8,684.09

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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.