Home / 12,765.18-19,160.72-8,073.66

Finding the Fourth Proportional to 12,765.18, 19,160.72 and 8,073.66

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Solution

The fourth proportional to 12,765.18, 19,160.72 and 8,073.66 is: 12,118.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765.18 : 19,160.72 = 8,073.66 : x
  2. Step 2: Convert to fraction form
    12,765.18/19,160.72 = 8,073.66/x
  3. Step 3: Cross multiply
    12,765.18x = 19,160.72 × 8,073.66
  4. Step 4: Simplify right side
    12,765.18x = 154,697,138.64
  5. Step 5: Solve for x
    x = 154,697,138.64/12,765.18
  6. Step 6: Final answer
    x = 12,118.68

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1.5x scale

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.