Home / 14,576.48-20,109.12-8,990.72

Finding the Fourth Proportional to 14,576.48, 20,109.12 and 8,990.72

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Solution

The fourth proportional to 14,576.48, 20,109.12 and 8,990.72 is: 12,403.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,576.48 : 20,109.12 = 8,990.72 : x
  2. Step 2: Convert to fraction form
    14,576.48/20,109.12 = 8,990.72/x
  3. Step 3: Cross multiply
    14,576.48x = 20,109.12 × 8,990.72
  4. Step 4: Simplify right side
    14,576.48x = 180,795,467.37
  5. Step 5: Solve for x
    x = 180,795,467.37/14,576.48
  6. Step 6: Final answer
    x = 12,403.23

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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.