Home / 12,359.52-18,539.28-3,125.52

Finding the Fourth Proportional to 12,359.52, 18,539.28 and 3,125.52

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Solution

The fourth proportional to 12,359.52, 18,539.28 and 3,125.52 is: 4,688.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.52 : 18,539.28 = 3,125.52 : x
  2. Step 2: Convert to fraction form
    12,359.52/18,539.28 = 3,125.52/x
  3. Step 3: Cross multiply
    12,359.52x = 18,539.28 × 3,125.52
  4. Step 4: Simplify right side
    12,359.52x = 57,944,890.43
  5. Step 5: Solve for x
    x = 57,944,890.43/12,359.52
  6. Step 6: Final answer
    x = 4,688.28

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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.