Home / 14,515.36-20,031.30-8,227.72

Finding the Fourth Proportional to 14,515.36, 20,031.30 and 8,227.72

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Solution

The fourth proportional to 14,515.36, 20,031.30 and 8,227.72 is: 11,354.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.36 : 20,031.30 = 8,227.72 : x
  2. Step 2: Convert to fraction form
    14,515.36/20,031.30 = 8,227.72/x
  3. Step 3: Cross multiply
    14,515.36x = 20,031.30 × 8,227.72
  4. Step 4: Simplify right side
    14,515.36x = 164,811,927.64
  5. Step 5: Solve for x
    x = 164,811,927.64/14,515.36
  6. Step 6: Final answer
    x = 11,354.31

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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.