Home / 14,127.72-21,172.77-7,450.62

Finding the Fourth Proportional to 14,127.72, 21,172.77 and 7,450.62

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Solution

The fourth proportional to 14,127.72, 21,172.77 and 7,450.62 is: 11,166.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,127.72 : 21,172.77 = 7,450.62 : x
  2. Step 2: Convert to fraction form
    14,127.72/21,172.77 = 7,450.62/x
  3. Step 3: Cross multiply
    14,127.72x = 21,172.77 × 7,450.62
  4. Step 4: Simplify right side
    14,127.72x = 157,750,263.62
  5. Step 5: Solve for x
    x = 157,750,263.62/14,127.72
  6. Step 6: Final answer
    x = 11,166.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.