Home / 14,438.21-19,917.88-9,400.59

Finding the Fourth Proportional to 14,438.21, 19,917.88 and 9,400.59

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Solution

The fourth proportional to 14,438.21, 19,917.88 and 9,400.59 is: 12,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.21 : 19,917.88 = 9,400.59 : x
  2. Step 2: Convert to fraction form
    14,438.21/19,917.88 = 9,400.59/x
  3. Step 3: Cross multiply
    14,438.21x = 19,917.88 × 9,400.59
  4. Step 4: Simplify right side
    14,438.21x = 187,239,800.05
  5. Step 5: Solve for x
    x = 187,239,800.05/14,438.21
  6. Step 6: Final answer
    x = 12,968.36

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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.