Home / 9,985.26-14,979.10-4,138.68

Finding the Fourth Proportional to 9,985.26, 14,979.10 and 4,138.68

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Solution

The fourth proportional to 9,985.26, 14,979.10 and 4,138.68 is: 6,208.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.26 : 14,979.10 = 4,138.68 : x
  2. Step 2: Convert to fraction form
    9,985.26/14,979.10 = 4,138.68/x
  3. Step 3: Cross multiply
    9,985.26x = 14,979.10 × 4,138.68
  4. Step 4: Simplify right side
    9,985.26x = 61,993,701.59
  5. Step 5: Solve for x
    x = 61,993,701.59/9,985.26
  6. Step 6: Final answer
    x = 6,208.52

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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.