Home / 14,990.33-20,688.41-12,467.99

Finding the Fourth Proportional to 14,990.33, 20,688.41 and 12,467.99

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Solution

The fourth proportional to 14,990.33, 20,688.41 and 12,467.99 is: 17,207.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990.33 : 20,688.41 = 12,467.99 : x
  2. Step 2: Convert to fraction form
    14,990.33/20,688.41 = 12,467.99/x
  3. Step 3: Cross multiply
    14,990.33x = 20,688.41 × 12,467.99
  4. Step 4: Simplify right side
    14,990.33x = 257,942,826.66
  5. Step 5: Solve for x
    x = 257,942,826.66/14,990.33
  6. Step 6: Final answer
    x = 17,207.28

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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.