Home / 8,756.64-13,130.31-3,820.51

Finding the Fourth Proportional to 8,756.64, 13,130.31 and 3,820.51

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Solution

The fourth proportional to 8,756.64, 13,130.31 and 3,820.51 is: 5,728.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,756.64 : 13,130.31 = 3,820.51 : x
  2. Step 2: Convert to fraction form
    8,756.64/13,130.31 = 3,820.51/x
  3. Step 3: Cross multiply
    8,756.64x = 13,130.31 × 3,820.51
  4. Step 4: Simplify right side
    8,756.64x = 50,164,438.28
  5. Step 5: Solve for x
    x = 50,164,438.28/8,756.64
  6. Step 6: Final answer
    x = 5,728.73

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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.