Home / 12,854.55-19,277.39-8,719.77

Finding the Fourth Proportional to 12,854.55, 19,277.39 and 8,719.77

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Solution

The fourth proportional to 12,854.55, 19,277.39 and 8,719.77 is: 13,076.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.55 : 19,277.39 = 8,719.77 : x
  2. Step 2: Convert to fraction form
    12,854.55/19,277.39 = 8,719.77/x
  3. Step 3: Cross multiply
    12,854.55x = 19,277.39 × 8,719.77
  4. Step 4: Simplify right side
    12,854.55x = 168,094,363.40
  5. Step 5: Solve for x
    x = 168,094,363.40/12,854.55
  6. Step 6: Final answer
    x = 13,076.64

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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.