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Finding the Fourth Proportional to 10,681.92, 16,013.16 and 7,905.24

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Solution

The fourth proportional to 10,681.92, 16,013.16 and 7,905.24 is: 11,850.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,681.92 : 16,013.16 = 7,905.24 : x
  2. Step 2: Convert to fraction form
    10,681.92/16,013.16 = 7,905.24/x
  3. Step 3: Cross multiply
    10,681.92x = 16,013.16 × 7,905.24
  4. Step 4: Simplify right side
    10,681.92x = 126,587,872.96
  5. Step 5: Solve for x
    x = 126,587,872.96/10,681.92
  6. Step 6: Final answer
    x = 11,850.67

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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.