Home / 14,395.74-21,556.89-11,478.30

Finding the Fourth Proportional to 14,395.74, 21,556.89 and 11,478.30

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Solution

The fourth proportional to 14,395.74, 21,556.89 and 11,478.30 is: 17,188.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,395.74 : 21,556.89 = 11,478.30 : x
  2. Step 2: Convert to fraction form
    14,395.74/21,556.89 = 11,478.30/x
  3. Step 3: Cross multiply
    14,395.74x = 21,556.89 × 11,478.30
  4. Step 4: Simplify right side
    14,395.74x = 247,436,450.49
  5. Step 5: Solve for x
    x = 247,436,450.49/14,395.74
  6. Step 6: Final answer
    x = 17,188.17

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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.