Home / 8,455.28-11,670.96-5,806.40

Finding the Fourth Proportional to 8,455.28, 11,670.96 and 5,806.40

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Solution

The fourth proportional to 8,455.28, 11,670.96 and 5,806.40 is: 8,014.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.28 : 11,670.96 = 5,806.40 : x
  2. Step 2: Convert to fraction form
    8,455.28/11,670.96 = 5,806.40/x
  3. Step 3: Cross multiply
    8,455.28x = 11,670.96 × 5,806.40
  4. Step 4: Simplify right side
    8,455.28x = 67,766,262.14
  5. Step 5: Solve for x
    x = 67,766,262.14/8,455.28
  6. Step 6: Final answer
    x = 8,014.67

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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.