Home / 13,164.48-19,750.57-4,405.55

Finding the Fourth Proportional to 13,164.48, 19,750.57 and 4,405.55

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Solution

The fourth proportional to 13,164.48, 19,750.57 and 4,405.55 is: 6,609.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.48 : 19,750.57 = 4,405.55 : x
  2. Step 2: Convert to fraction form
    13,164.48/19,750.57 = 4,405.55/x
  3. Step 3: Cross multiply
    13,164.48x = 19,750.57 × 4,405.55
  4. Step 4: Simplify right side
    13,164.48x = 87,012,013.90
  5. Step 5: Solve for x
    x = 87,012,013.90/13,164.48
  6. Step 6: Final answer
    x = 6,609.61

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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.