Home / 9,811.89-13,543.29-5,835.81

Finding the Fourth Proportional to 9,811.89, 13,543.29 and 5,835.81

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Solution

The fourth proportional to 9,811.89, 13,543.29 and 5,835.81 is: 8,055.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,811.89 : 13,543.29 = 5,835.81 : x
  2. Step 2: Convert to fraction form
    9,811.89/13,543.29 = 5,835.81/x
  3. Step 3: Cross multiply
    9,811.89x = 13,543.29 × 5,835.81
  4. Step 4: Simplify right side
    9,811.89x = 79,036,067.21
  5. Step 5: Solve for x
    x = 79,036,067.21/9,811.89
  6. Step 6: Final answer
    x = 8,055.13

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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.