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Finding the Fourth Proportional to 9,999.93, 15,002.31 and 5,256.27

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Solution

The fourth proportional to 9,999.93, 15,002.31 and 5,256.27 is: 7,885.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.93 : 15,002.31 = 5,256.27 : x
  2. Step 2: Convert to fraction form
    9,999.93/15,002.31 = 5,256.27/x
  3. Step 3: Cross multiply
    9,999.93x = 15,002.31 × 5,256.27
  4. Step 4: Simplify right side
    9,999.93x = 78,856,191.98
  5. Step 5: Solve for x
    x = 78,856,191.98/9,999.93
  6. Step 6: Final answer
    x = 7,885.67

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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.