Home / 8,719.14-13,078.54-2,875.75

Finding the Fourth Proportional to 8,719.14, 13,078.54 and 2,875.75

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Solution

The fourth proportional to 8,719.14, 13,078.54 and 2,875.75 is: 4,313.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.14 : 13,078.54 = 2,875.75 : x
  2. Step 2: Convert to fraction form
    8,719.14/13,078.54 = 2,875.75/x
  3. Step 3: Cross multiply
    8,719.14x = 13,078.54 × 2,875.75
  4. Step 4: Simplify right side
    8,719.14x = 37,610,663.96
  5. Step 5: Solve for x
    x = 37,610,663.96/8,719.14
  6. Step 6: Final answer
    x = 4,313.57

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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.