Home / 13,077.42-19,620.21-4,318.48

Finding the Fourth Proportional to 13,077.42, 19,620.21 and 4,318.48

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Solution

The fourth proportional to 13,077.42, 19,620.21 and 4,318.48 is: 6,479.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,077.42 : 19,620.21 = 4,318.48 : x
  2. Step 2: Convert to fraction form
    13,077.42/19,620.21 = 4,318.48/x
  3. Step 3: Cross multiply
    13,077.42x = 19,620.21 × 4,318.48
  4. Step 4: Simplify right side
    13,077.42x = 84,729,525.20
  5. Step 5: Solve for x
    x = 84,729,525.20/13,077.42
  6. Step 6: Final answer
    x = 6,479.07

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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.