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Finding the Fourth Proportional to 10,245.96, 15,379.74 and 7,334.28

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Solution

The fourth proportional to 10,245.96, 15,379.74 and 7,334.28 is: 11,009.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,245.96 : 15,379.74 = 7,334.28 : x
  2. Step 2: Convert to fraction form
    10,245.96/15,379.74 = 7,334.28/x
  3. Step 3: Cross multiply
    10,245.96x = 15,379.74 × 7,334.28
  4. Step 4: Simplify right side
    10,245.96x = 112,799,319.49
  5. Step 5: Solve for x
    x = 112,799,319.49/10,245.96
  6. Step 6: Final answer
    x = 11,009.15

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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.