Home / 14,438.28-19,918.80-9,714.36

Finding the Fourth Proportional to 14,438.28, 19,918.80 and 9,714.36

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Solution

The fourth proportional to 14,438.28, 19,918.80 and 9,714.36 is: 13,401.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.28 : 19,918.80 = 9,714.36 : x
  2. Step 2: Convert to fraction form
    14,438.28/19,918.80 = 9,714.36/x
  3. Step 3: Cross multiply
    14,438.28x = 19,918.80 × 9,714.36
  4. Step 4: Simplify right side
    14,438.28x = 193,498,393.97
  5. Step 5: Solve for x
    x = 193,498,393.97/14,438.28
  6. Step 6: Final answer
    x = 13,401.76

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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.