Home / 21,164.54-29,206.89-11,733.08

Finding the Fourth Proportional to 21,164.54, 29,206.89 and 11,733.08

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Solution

The fourth proportional to 21,164.54, 29,206.89 and 11,733.08 is: 16,191.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.54 : 29,206.89 = 11,733.08 : x
  2. Step 2: Convert to fraction form
    21,164.54/29,206.89 = 11,733.08/x
  3. Step 3: Cross multiply
    21,164.54x = 29,206.89 × 11,733.08
  4. Step 4: Simplify right side
    21,164.54x = 342,686,630.89
  5. Step 5: Solve for x
    x = 342,686,630.89/21,164.54
  6. Step 6: Final answer
    x = 16,191.55

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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.