Home / 9,913.93-13,679.08-5,719.75

Finding the Fourth Proportional to 9,913.93, 13,679.08 and 5,719.75

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Solution

The fourth proportional to 9,913.93, 13,679.08 and 5,719.75 is: 7,892.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.93 : 13,679.08 = 5,719.75 : x
  2. Step 2: Convert to fraction form
    9,913.93/13,679.08 = 5,719.75/x
  3. Step 3: Cross multiply
    9,913.93x = 13,679.08 × 5,719.75
  4. Step 4: Simplify right side
    9,913.93x = 78,240,917.83
  5. Step 5: Solve for x
    x = 78,240,917.83/9,913.93
  6. Step 6: Final answer
    x = 7,892.02

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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.