Home / 10,339.94-15,509.63-3,319.92

Finding the Fourth Proportional to 10,339.94, 15,509.63 and 3,319.92

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Solution

The fourth proportional to 10,339.94, 15,509.63 and 3,319.92 is: 4,979.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.94 : 15,509.63 = 3,319.92 : x
  2. Step 2: Convert to fraction form
    10,339.94/15,509.63 = 3,319.92/x
  3. Step 3: Cross multiply
    10,339.94x = 15,509.63 × 3,319.92
  4. Step 4: Simplify right side
    10,339.94x = 51,490,739.13
  5. Step 5: Solve for x
    x = 51,490,739.13/10,339.94
  6. Step 6: Final answer
    x = 4,979.79

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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.