Home / 9,403.42-12,976.44-5,154.39

Finding the Fourth Proportional to 9,403.42, 12,976.44 and 5,154.39

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Solution

The fourth proportional to 9,403.42, 12,976.44 and 5,154.39 is: 7,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.42 : 12,976.44 = 5,154.39 : x
  2. Step 2: Convert to fraction form
    9,403.42/12,976.44 = 5,154.39/x
  3. Step 3: Cross multiply
    9,403.42x = 12,976.44 × 5,154.39
  4. Step 4: Simplify right side
    9,403.42x = 66,885,576.75
  5. Step 5: Solve for x
    x = 66,885,576.75/9,403.42
  6. Step 6: Final answer
    x = 7,112.90

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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.