Home / 8,703.48-13,055.15-2,129.61

Finding the Fourth Proportional to 8,703.48, 13,055.15 and 2,129.61

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Solution

The fourth proportional to 8,703.48, 13,055.15 and 2,129.61 is: 3,194.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.48 : 13,055.15 = 2,129.61 : x
  2. Step 2: Convert to fraction form
    8,703.48/13,055.15 = 2,129.61/x
  3. Step 3: Cross multiply
    8,703.48x = 13,055.15 × 2,129.61
  4. Step 4: Simplify right side
    8,703.48x = 27,802,367.34
  5. Step 5: Solve for x
    x = 27,802,367.34/8,703.48
  6. Step 6: Final answer
    x = 3,194.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.