Home / 12,829.52-19,216.20-7,623.92

Finding the Fourth Proportional to 12,829.52, 19,216.20 and 7,623.92

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Solution

The fourth proportional to 12,829.52, 19,216.20 and 7,623.92 is: 11,419.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,829.52 : 19,216.20 = 7,623.92 : x
  2. Step 2: Convert to fraction form
    12,829.52/19,216.20 = 7,623.92/x
  3. Step 3: Cross multiply
    12,829.52x = 19,216.20 × 7,623.92
  4. Step 4: Simplify right side
    12,829.52x = 146,502,771.50
  5. Step 5: Solve for x
    x = 146,502,771.50/12,829.52
  6. Step 6: Final answer
    x = 11,419.19

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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.