Home / 12,828.52-19,214.70-7,622.92

Finding the Fourth Proportional to 12,828.52, 19,214.70 and 7,622.92

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Solution

The fourth proportional to 12,828.52, 19,214.70 and 7,622.92 is: 11,417.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828.52 : 19,214.70 = 7,622.92 : x
  2. Step 2: Convert to fraction form
    12,828.52/19,214.70 = 7,622.92/x
  3. Step 3: Cross multiply
    12,828.52x = 19,214.70 × 7,622.92
  4. Step 4: Simplify right side
    12,828.52x = 146,472,120.92
  5. Step 5: Solve for x
    x = 146,472,120.92/12,828.52
  6. Step 6: Final answer
    x = 11,417.69

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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.