Home / 10,339.25-15,509.88-3,319.38

Finding the Fourth Proportional to 10,339.25, 15,509.88 and 3,319.38

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Solution

The fourth proportional to 10,339.25, 15,509.88 and 3,319.38 is: 4,979.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,339.25 : 15,509.88 = 3,319.38 : x
  2. Step 2: Convert to fraction form
    10,339.25/15,509.88 = 3,319.38/x
  3. Step 3: Cross multiply
    10,339.25x = 15,509.88 × 3,319.38
  4. Step 4: Simplify right side
    10,339.25x = 51,483,185.47
  5. Step 5: Solve for x
    x = 51,483,185.47/10,339.25
  6. Step 6: Final answer
    x = 4,979.40

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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.