Home / 10,908.83-15,053.29-6,128.51

Finding the Fourth Proportional to 10,908.83, 15,053.29 and 6,128.51

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Solution

The fourth proportional to 10,908.83, 15,053.29 and 6,128.51 is: 8,456.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,908.83 : 15,053.29 = 6,128.51 : x
  2. Step 2: Convert to fraction form
    10,908.83/15,053.29 = 6,128.51/x
  3. Step 3: Cross multiply
    10,908.83x = 15,053.29 × 6,128.51
  4. Step 4: Simplify right side
    10,908.83x = 92,254,238.30
  5. Step 5: Solve for x
    x = 92,254,238.30/10,908.83
  6. Step 6: Final answer
    x = 8,456.84

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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.