Home / 14,220.90-19,621.63-8,554.14

Finding the Fourth Proportional to 14,220.90, 19,621.63 and 8,554.14

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Solution

The fourth proportional to 14,220.90, 19,621.63 and 8,554.14 is: 11,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,220.90 : 19,621.63 = 8,554.14 : x
  2. Step 2: Convert to fraction form
    14,220.90/19,621.63 = 8,554.14/x
  3. Step 3: Cross multiply
    14,220.90x = 19,621.63 × 8,554.14
  4. Step 4: Simplify right side
    14,220.90x = 167,846,170.05
  5. Step 5: Solve for x
    x = 167,846,170.05/14,220.90
  6. Step 6: Final answer
    x = 11,802.78

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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.