Home / 8,270.45-11,412.55-4,914.12

Finding the Fourth Proportional to 8,270.45, 11,412.55 and 4,914.12

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Solution

The fourth proportional to 8,270.45, 11,412.55 and 4,914.12 is: 6,781.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,270.45 : 11,412.55 = 4,914.12 : x
  2. Step 2: Convert to fraction form
    8,270.45/11,412.55 = 4,914.12/x
  3. Step 3: Cross multiply
    8,270.45x = 11,412.55 × 4,914.12
  4. Step 4: Simplify right side
    8,270.45x = 56,082,597.31
  5. Step 5: Solve for x
    x = 56,082,597.31/8,270.45
  6. Step 6: Final answer
    x = 6,781.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.