Home / 8,975.16-13,462.62-3,131.76

Finding the Fourth Proportional to 8,975.16, 13,462.62 and 3,131.76

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Solution

The fourth proportional to 8,975.16, 13,462.62 and 3,131.76 is: 4,697.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.16 : 13,462.62 = 3,131.76 : x
  2. Step 2: Convert to fraction form
    8,975.16/13,462.62 = 3,131.76/x
  3. Step 3: Cross multiply
    8,975.16x = 13,462.62 × 3,131.76
  4. Step 4: Simplify right side
    8,975.16x = 42,161,694.81
  5. Step 5: Solve for x
    x = 42,161,694.81/8,975.16
  6. Step 6: Final answer
    x = 4,697.60

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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.