Home / 10,853.24-14,979.20-6,378.09

Finding the Fourth Proportional to 10,853.24, 14,979.20 and 6,378.09

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Solution

The fourth proportional to 10,853.24, 14,979.20 and 6,378.09 is: 8,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,853.24 : 14,979.20 = 6,378.09 : x
  2. Step 2: Convert to fraction form
    10,853.24/14,979.20 = 6,378.09/x
  3. Step 3: Cross multiply
    10,853.24x = 14,979.20 × 6,378.09
  4. Step 4: Simplify right side
    10,853.24x = 95,538,735.74
  5. Step 5: Solve for x
    x = 95,538,735.74/10,853.24
  6. Step 6: Final answer
    x = 8,802.78

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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.