Home / 12,828.52-19,246.16-5,433.28

Finding the Fourth Proportional to 12,828.52, 19,246.16 and 5,433.28

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Solution

The fourth proportional to 12,828.52, 19,246.16 and 5,433.28 is: 8,151.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828.52 : 19,246.16 = 5,433.28 : x
  2. Step 2: Convert to fraction form
    12,828.52/19,246.16 = 5,433.28/x
  3. Step 3: Cross multiply
    12,828.52x = 19,246.16 × 5,433.28
  4. Step 4: Simplify right side
    12,828.52x = 104,569,776.20
  5. Step 5: Solve for x
    x = 104,569,776.20/12,828.52
  6. Step 6: Final answer
    x = 8,151.35

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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.