Home / 14,586.26-20,128.73-8,921.07

Finding the Fourth Proportional to 14,586.26, 20,128.73 and 8,921.07

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Solution

The fourth proportional to 14,586.26, 20,128.73 and 8,921.07 is: 12,310.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,586.26 : 20,128.73 = 8,921.07 : x
  2. Step 2: Convert to fraction form
    14,586.26/20,128.73 = 8,921.07/x
  3. Step 3: Cross multiply
    14,586.26x = 20,128.73 × 8,921.07
  4. Step 4: Simplify right side
    14,586.26x = 179,569,764.74
  5. Step 5: Solve for x
    x = 179,569,764.74/14,586.26
  6. Step 6: Final answer
    x = 12,310.89

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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.