Home / 14,220.27-19,621.67-8,553.65

Finding the Fourth Proportional to 14,220.27, 19,621.67 and 8,553.65

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Solution

The fourth proportional to 14,220.27, 19,621.67 and 8,553.65 is: 11,802.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.27 : 19,621.67 = 8,553.65 : x
  2. Step 2: Convert to fraction form
    14,220.27/19,621.67 = 8,553.65/x
  3. Step 3: Cross multiply
    14,220.27x = 19,621.67 × 8,553.65
  4. Step 4: Simplify right side
    14,220.27x = 167,836,756.72
  5. Step 5: Solve for x
    x = 167,836,756.72/14,220.27
  6. Step 6: Final answer
    x = 11,802.64

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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.