Home / 14,312.72-19,750.97-8,650.79

Finding the Fourth Proportional to 14,312.72, 19,750.97 and 8,650.79

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Solution

The fourth proportional to 14,312.72, 19,750.97 and 8,650.79 is: 11,937.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,312.72 : 19,750.97 = 8,650.79 : x
  2. Step 2: Convert to fraction form
    14,312.72/19,750.97 = 8,650.79/x
  3. Step 3: Cross multiply
    14,312.72x = 19,750.97 × 8,650.79
  4. Step 4: Simplify right side
    14,312.72x = 170,861,351.76
  5. Step 5: Solve for x
    x = 170,861,351.76/14,312.72
  6. Step 6: Final answer
    x = 11,937.73

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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.