Home / 14,642.63-21,912.92-11,979.35

Finding the Fourth Proportional to 14,642.63, 21,912.92 and 11,979.35

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Solution

The fourth proportional to 14,642.63, 21,912.92 and 11,979.35 is: 17,927.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,642.63 : 21,912.92 = 11,979.35 : x
  2. Step 2: Convert to fraction form
    14,642.63/21,912.92 = 11,979.35/x
  3. Step 3: Cross multiply
    14,642.63x = 21,912.92 × 11,979.35
  4. Step 4: Simplify right side
    14,642.63x = 262,502,478.31
  5. Step 5: Solve for x
    x = 262,502,478.31/14,642.63
  6. Step 6: Final answer
    x = 17,927.28

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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.