Home / 11,812.41-16,298.75-8,979.03

Finding the Fourth Proportional to 11,812.41, 16,298.75 and 8,979.03

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Solution

The fourth proportional to 11,812.41, 16,298.75 and 8,979.03 is: 12,389.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,812.41 : 16,298.75 = 8,979.03 : x
  2. Step 2: Convert to fraction form
    11,812.41/16,298.75 = 8,979.03/x
  3. Step 3: Cross multiply
    11,812.41x = 16,298.75 × 8,979.03
  4. Step 4: Simplify right side
    11,812.41x = 146,346,987.66
  5. Step 5: Solve for x
    x = 146,346,987.66/11,812.41
  6. Step 6: Final answer
    x = 12,389.26

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1.5x scale

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.