Home / 9,400.86-12,976.44-5,423.58

Finding the Fourth Proportional to 9,400.86, 12,976.44 and 5,423.58

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Solution

The fourth proportional to 9,400.86, 12,976.44 and 5,423.58 is: 7,486.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,400.86 : 12,976.44 = 5,423.58 : x
  2. Step 2: Convert to fraction form
    9,400.86/12,976.44 = 5,423.58/x
  3. Step 3: Cross multiply
    9,400.86x = 12,976.44 × 5,423.58
  4. Step 4: Simplify right side
    9,400.86x = 70,378,760.46
  5. Step 5: Solve for x
    x = 70,378,760.46/9,400.86
  6. Step 6: Final answer
    x = 7,486.42

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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.