Home / 7,863.90-10,853.26-7,199.58

Finding the Fourth Proportional to 7,863.90, 10,853.26 and 7,199.58

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Solution

The fourth proportional to 7,863.90, 10,853.26 and 7,199.58 is: 9,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.90 : 10,853.26 = 7,199.58 : x
  2. Step 2: Convert to fraction form
    7,863.90/10,853.26 = 7,199.58/x
  3. Step 3: Cross multiply
    7,863.90x = 10,853.26 × 7,199.58
  4. Step 4: Simplify right side
    7,863.90x = 78,138,913.63
  5. Step 5: Solve for x
    x = 78,138,913.63/7,863.90
  6. Step 6: Final answer
    x = 9,936.41

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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.