Home / 14,088.88-19,440.24-8,120.80

Finding the Fourth Proportional to 14,088.88, 19,440.24 and 8,120.80

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Solution

The fourth proportional to 14,088.88, 19,440.24 and 8,120.80 is: 11,205.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,088.88 : 19,440.24 = 8,120.80 : x
  2. Step 2: Convert to fraction form
    14,088.88/19,440.24 = 8,120.80/x
  3. Step 3: Cross multiply
    14,088.88x = 19,440.24 × 8,120.80
  4. Step 4: Simplify right side
    14,088.88x = 157,870,300.99
  5. Step 5: Solve for x
    x = 157,870,300.99/14,088.88
  6. Step 6: Final answer
    x = 11,205.31

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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.