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Finding the Fourth Proportional to 9,989.94, 14,984.92 and 2,593.78

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Solution

The fourth proportional to 9,989.94, 14,984.92 and 2,593.78 is: 3,890.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,989.94 : 14,984.92 = 2,593.78 : x
  2. Step 2: Convert to fraction form
    9,989.94/14,984.92 = 2,593.78/x
  3. Step 3: Cross multiply
    9,989.94x = 14,984.92 × 2,593.78
  4. Step 4: Simplify right side
    9,989.94x = 38,867,541.85
  5. Step 5: Solve for x
    x = 38,867,541.85/9,989.94
  6. Step 6: Final answer
    x = 3,890.67

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Similar ratio
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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.