Home / 14,910.29-20,574.65-8,621.45

Finding the Fourth Proportional to 14,910.29, 20,574.65 and 8,621.45

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Solution

The fourth proportional to 14,910.29, 20,574.65 and 8,621.45 is: 11,896.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,910.29 : 20,574.65 = 8,621.45 : x
  2. Step 2: Convert to fraction form
    14,910.29/20,574.65 = 8,621.45/x
  3. Step 3: Cross multiply
    14,910.29x = 20,574.65 × 8,621.45
  4. Step 4: Simplify right side
    14,910.29x = 177,383,273.14
  5. Step 5: Solve for x
    x = 177,383,273.14/14,910.29
  6. Step 6: Final answer
    x = 11,896.70

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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.