Home / 11,429.62-15,771.30-6,393.58

Finding the Fourth Proportional to 11,429.62, 15,771.30 and 6,393.58

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Solution

The fourth proportional to 11,429.62, 15,771.30 and 6,393.58 is: 8,822.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.62 : 15,771.30 = 6,393.58 : x
  2. Step 2: Convert to fraction form
    11,429.62/15,771.30 = 6,393.58/x
  3. Step 3: Cross multiply
    11,429.62x = 15,771.30 × 6,393.58
  4. Step 4: Simplify right side
    11,429.62x = 100,835,068.25
  5. Step 5: Solve for x
    x = 100,835,068.25/11,429.62
  6. Step 6: Final answer
    x = 8,822.26

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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.