Home / 10,854.36-14,979.60-6,874.02

Finding the Fourth Proportional to 10,854.36, 14,979.60 and 6,874.02

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Solution

The fourth proportional to 10,854.36, 14,979.60 and 6,874.02 is: 9,486.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,854.36 : 14,979.60 = 6,874.02 : x
  2. Step 2: Convert to fraction form
    10,854.36/14,979.60 = 6,874.02/x
  3. Step 3: Cross multiply
    10,854.36x = 14,979.60 × 6,874.02
  4. Step 4: Simplify right side
    10,854.36x = 102,970,069.99
  5. Step 5: Solve for x
    x = 102,970,069.99/10,854.36
  6. Step 6: Final answer
    x = 9,486.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.