Home / 11,156.56-15,416.52-8,007.76

Finding the Fourth Proportional to 11,156.56, 15,416.52 and 8,007.76

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Solution

The fourth proportional to 11,156.56, 15,416.52 and 8,007.76 is: 11,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.56 : 15,416.52 = 8,007.76 : x
  2. Step 2: Convert to fraction form
    11,156.56/15,416.52 = 8,007.76/x
  3. Step 3: Cross multiply
    11,156.56x = 15,416.52 × 8,007.76
  4. Step 4: Simplify right side
    11,156.56x = 123,451,792.20
  5. Step 5: Solve for x
    x = 123,451,792.20/11,156.56
  6. Step 6: Final answer
    x = 11,065.40

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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.