Home / 21,133.09-29,162.59-11,573.07

Finding the Fourth Proportional to 21,133.09, 29,162.59 and 11,573.07

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Solution

The fourth proportional to 21,133.09, 29,162.59 and 11,573.07 is: 15,970.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.09 : 29,162.59 = 11,573.07 : x
  2. Step 2: Convert to fraction form
    21,133.09/29,162.59 = 11,573.07/x
  3. Step 3: Cross multiply
    21,133.09x = 29,162.59 × 11,573.07
  4. Step 4: Simplify right side
    21,133.09x = 337,500,695.45
  5. Step 5: Solve for x
    x = 337,500,695.45/21,133.09
  6. Step 6: Final answer
    x = 15,970.25

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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.