Home / 14,782.72-20,399.28-8,066.99

Finding the Fourth Proportional to 14,782.72, 20,399.28 and 8,066.99

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Solution

The fourth proportional to 14,782.72, 20,399.28 and 8,066.99 is: 11,131.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,782.72 : 20,399.28 = 8,066.99 : x
  2. Step 2: Convert to fraction form
    14,782.72/20,399.28 = 8,066.99/x
  3. Step 3: Cross multiply
    14,782.72x = 20,399.28 × 8,066.99
  4. Step 4: Simplify right side
    14,782.72x = 164,560,842.55
  5. Step 5: Solve for x
    x = 164,560,842.55/14,782.72
  6. Step 6: Final answer
    x = 11,131.98

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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.