Home / 12,864.61-19,285.82-4,972.67

Finding the Fourth Proportional to 12,864.61, 19,285.82 and 4,972.67

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Solution

The fourth proportional to 12,864.61, 19,285.82 and 4,972.67 is: 7,454.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.61 : 19,285.82 = 4,972.67 : x
  2. Step 2: Convert to fraction form
    12,864.61/19,285.82 = 4,972.67/x
  3. Step 3: Cross multiply
    12,864.61x = 19,285.82 × 4,972.67
  4. Step 4: Simplify right side
    12,864.61x = 95,901,922.11
  5. Step 5: Solve for x
    x = 95,901,922.11/12,864.61
  6. Step 6: Final answer
    x = 7,454.71

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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.