Home / 8,670.28-11,958.42-6,156.04

Finding the Fourth Proportional to 8,670.28, 11,958.42 and 6,156.04

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Solution

The fourth proportional to 8,670.28, 11,958.42 and 6,156.04 is: 8,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.28 : 11,958.42 = 6,156.04 : x
  2. Step 2: Convert to fraction form
    8,670.28/11,958.42 = 6,156.04/x
  3. Step 3: Cross multiply
    8,670.28x = 11,958.42 × 6,156.04
  4. Step 4: Simplify right side
    8,670.28x = 73,616,511.86
  5. Step 5: Solve for x
    x = 73,616,511.86/8,670.28
  6. Step 6: Final answer
    x = 8,490.67

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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.