Home / 8,242.55-11,374.65-4,705.75

Finding the Fourth Proportional to 8,242.55, 11,374.65 and 4,705.75

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Solution

The fourth proportional to 8,242.55, 11,374.65 and 4,705.75 is: 6,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,242.55 : 11,374.65 = 4,705.75 : x
  2. Step 2: Convert to fraction form
    8,242.55/11,374.65 = 4,705.75/x
  3. Step 3: Cross multiply
    8,242.55x = 11,374.65 × 4,705.75
  4. Step 4: Simplify right side
    8,242.55x = 53,526,259.24
  5. Step 5: Solve for x
    x = 53,526,259.24/8,242.55
  6. Step 6: Final answer
    x = 6,493.90

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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.