Home / 15,808.13-23,712.80-4,121.45

Finding the Fourth Proportional to 15,808.13, 23,712.80 and 4,121.45

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Solution

The fourth proportional to 15,808.13, 23,712.80 and 4,121.45 is: 6,182.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,808.13 : 23,712.80 = 4,121.45 : x
  2. Step 2: Convert to fraction form
    15,808.13/23,712.80 = 4,121.45/x
  3. Step 3: Cross multiply
    15,808.13x = 23,712.80 × 4,121.45
  4. Step 4: Simplify right side
    15,808.13x = 97,731,119.56
  5. Step 5: Solve for x
    x = 97,731,119.56/15,808.13
  6. Step 6: Final answer
    x = 6,182.33

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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.