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Finding the Fourth Proportional to 9,402.56, 13,034.93 and 8,903.21

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Solution

The fourth proportional to 9,402.56, 13,034.93 and 8,903.21 is: 12,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,402.56 : 13,034.93 = 8,903.21 : x
  2. Step 2: Convert to fraction form
    9,402.56/13,034.93 = 8,903.21/x
  3. Step 3: Cross multiply
    9,402.56x = 13,034.93 × 8,903.21
  4. Step 4: Simplify right side
    9,402.56x = 116,052,719.13
  5. Step 5: Solve for x
    x = 116,052,719.13/9,402.56
  6. Step 6: Final answer
    x = 12,342.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.