Home / 8,958.48-13,440.15-3,115.55

Finding the Fourth Proportional to 8,958.48, 13,440.15 and 3,115.55

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Solution

The fourth proportional to 8,958.48, 13,440.15 and 3,115.55 is: 4,674.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.48 : 13,440.15 = 3,115.55 : x
  2. Step 2: Convert to fraction form
    8,958.48/13,440.15 = 3,115.55/x
  3. Step 3: Cross multiply
    8,958.48x = 13,440.15 × 3,115.55
  4. Step 4: Simplify right side
    8,958.48x = 41,873,459.33
  5. Step 5: Solve for x
    x = 41,873,459.33/8,958.48
  6. Step 6: Final answer
    x = 4,674.17

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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.