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Finding the Fourth Proportional to 8,992.04, 13,419.38 and 8,007.89

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Solution

The fourth proportional to 8,992.04, 13,419.38 and 8,007.89 is: 11,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,992.04 : 13,419.38 = 8,007.89 : x
  2. Step 2: Convert to fraction form
    8,992.04/13,419.38 = 8,007.89/x
  3. Step 3: Cross multiply
    8,992.04x = 13,419.38 × 8,007.89
  4. Step 4: Simplify right side
    8,992.04x = 107,460,871.83
  5. Step 5: Solve for x
    x = 107,460,871.83/8,992.04
  6. Step 6: Final answer
    x = 11,950.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.