Home / 14,490.41-19,993.87-8,821.37

Finding the Fourth Proportional to 14,490.41, 19,993.87 and 8,821.37

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Solution

The fourth proportional to 14,490.41, 19,993.87 and 8,821.37 is: 12,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.41 : 19,993.87 = 8,821.37 : x
  2. Step 2: Convert to fraction form
    14,490.41/19,993.87 = 8,821.37/x
  3. Step 3: Cross multiply
    14,490.41x = 19,993.87 × 8,821.37
  4. Step 4: Simplify right side
    14,490.41x = 176,373,386.01
  5. Step 5: Solve for x
    x = 176,373,386.01/14,490.41
  6. Step 6: Final answer
    x = 12,171.74

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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.