Home / 14,945.41-20,625.69-8,657.79

Finding the Fourth Proportional to 14,945.41, 20,625.69 and 8,657.79

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Solution

The fourth proportional to 14,945.41, 20,625.69 and 8,657.79 is: 11,948.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,945.41 : 20,625.69 = 8,657.79 : x
  2. Step 2: Convert to fraction form
    14,945.41/20,625.69 = 8,657.79/x
  3. Step 3: Cross multiply
    14,945.41x = 20,625.69 × 8,657.79
  4. Step 4: Simplify right side
    14,945.41x = 178,572,799.05
  5. Step 5: Solve for x
    x = 178,572,799.05/14,945.41
  6. Step 6: Final answer
    x = 11,948.34

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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.