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Finding the Fourth Proportional to 7,287.83, 10,923.47 and 6,408.63

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Solution

The fourth proportional to 7,287.83, 10,923.47 and 6,408.63 is: 9,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,287.83 : 10,923.47 = 6,408.63 : x
  2. Step 2: Convert to fraction form
    7,287.83/10,923.47 = 6,408.63/x
  3. Step 3: Cross multiply
    7,287.83x = 10,923.47 × 6,408.63
  4. Step 4: Simplify right side
    7,287.83x = 70,004,477.55
  5. Step 5: Solve for x
    x = 70,004,477.55/7,287.83
  6. Step 6: Final answer
    x = 9,605.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.