Home / 14,389.65-21,556.23-12,822.30

Finding the Fourth Proportional to 14,389.65, 21,556.23 and 12,822.30

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Solution

The fourth proportional to 14,389.65, 21,556.23 and 12,822.30 is: 19,208.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.65 : 21,556.23 = 12,822.30 : x
  2. Step 2: Convert to fraction form
    14,389.65/21,556.23 = 12,822.30/x
  3. Step 3: Cross multiply
    14,389.65x = 21,556.23 × 12,822.30
  4. Step 4: Simplify right side
    14,389.65x = 276,400,399.85
  5. Step 5: Solve for x
    x = 276,400,399.85/14,389.65
  6. Step 6: Final answer
    x = 19,208.28

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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.