Home / 21,095.07-29,111.16-11,663.56

Finding the Fourth Proportional to 21,095.07, 29,111.16 and 11,663.56

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Solution

The fourth proportional to 21,095.07, 29,111.16 and 11,663.56 is: 16,095.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.07 : 29,111.16 = 11,663.56 : x
  2. Step 2: Convert to fraction form
    21,095.07/29,111.16 = 11,663.56/x
  3. Step 3: Cross multiply
    21,095.07x = 29,111.16 × 11,663.56
  4. Step 4: Simplify right side
    21,095.07x = 339,539,761.33
  5. Step 5: Solve for x
    x = 339,539,761.33/21,095.07
  6. Step 6: Final answer
    x = 16,095.69

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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.