Home / 21,526.43-29,706.73-11,966.90

Finding the Fourth Proportional to 21,526.43, 29,706.73 and 11,966.90

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Solution

The fourth proportional to 21,526.43, 29,706.73 and 11,966.90 is: 16,514.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,526.43 : 29,706.73 = 11,966.90 : x
  2. Step 2: Convert to fraction form
    21,526.43/29,706.73 = 11,966.90/x
  3. Step 3: Cross multiply
    21,526.43x = 29,706.73 × 11,966.90
  4. Step 4: Simplify right side
    21,526.43x = 355,497,288.79
  5. Step 5: Solve for x
    x = 355,497,288.79/21,526.43
  6. Step 6: Final answer
    x = 16,514.46

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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.