Home / 10,725.28-14,802.96-6,992.80

Finding the Fourth Proportional to 10,725.28, 14,802.96 and 6,992.80

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Solution

The fourth proportional to 10,725.28, 14,802.96 and 6,992.80 is: 9,651.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,725.28 : 14,802.96 = 6,992.80 : x
  2. Step 2: Convert to fraction form
    10,725.28/14,802.96 = 6,992.80/x
  3. Step 3: Cross multiply
    10,725.28x = 14,802.96 × 6,992.80
  4. Step 4: Simplify right side
    10,725.28x = 103,514,138.69
  5. Step 5: Solve for x
    x = 103,514,138.69/10,725.28
  6. Step 6: Final answer
    x = 9,651.42

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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.