Home / 8,749.64-13,117.01-3,815.60

Finding the Fourth Proportional to 8,749.64, 13,117.01 and 3,815.60

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Solution

The fourth proportional to 8,749.64, 13,117.01 and 3,815.60 is: 5,720.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.64 : 13,117.01 = 3,815.60 : x
  2. Step 2: Convert to fraction form
    8,749.64/13,117.01 = 3,815.60/x
  3. Step 3: Cross multiply
    8,749.64x = 13,117.01 × 3,815.60
  4. Step 4: Simplify right side
    8,749.64x = 50,049,178.69
  5. Step 5: Solve for x
    x = 50,049,178.69/8,749.64
  6. Step 6: Final answer
    x = 5,720.14

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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.