Home / 14,203.56-21,308.41-5,438.47

Finding the Fourth Proportional to 14,203.56, 21,308.41 and 5,438.47

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Solution

The fourth proportional to 14,203.56, 21,308.41 and 5,438.47 is: 8,158.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,203.56 : 21,308.41 = 5,438.47 : x
  2. Step 2: Convert to fraction form
    14,203.56/21,308.41 = 5,438.47/x
  3. Step 3: Cross multiply
    14,203.56x = 21,308.41 × 5,438.47
  4. Step 4: Simplify right side
    14,203.56x = 115,885,134.94
  5. Step 5: Solve for x
    x = 115,885,134.94/14,203.56
  6. Step 6: Final answer
    x = 8,158.88

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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.