Home / 9,212.31-12,712.41-5,435.64

Finding the Fourth Proportional to 9,212.31, 12,712.41 and 5,435.64

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Solution

The fourth proportional to 9,212.31, 12,712.41 and 5,435.64 is: 7,500.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.31 : 12,712.41 = 5,435.64 : x
  2. Step 2: Convert to fraction form
    9,212.31/12,712.41 = 5,435.64/x
  3. Step 3: Cross multiply
    9,212.31x = 12,712.41 × 5,435.64
  4. Step 4: Simplify right side
    9,212.31x = 69,100,084.29
  5. Step 5: Solve for x
    x = 69,100,084.29/9,212.31
  6. Step 6: Final answer
    x = 7,500.84

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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.