Home / 9,340.05-12,889.08-5,148.30

Finding the Fourth Proportional to 9,340.05, 12,889.08 and 5,148.30

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Solution

The fourth proportional to 9,340.05, 12,889.08 and 5,148.30 is: 7,104.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,340.05 : 12,889.08 = 5,148.30 : x
  2. Step 2: Convert to fraction form
    9,340.05/12,889.08 = 5,148.30/x
  3. Step 3: Cross multiply
    9,340.05x = 12,889.08 × 5,148.30
  4. Step 4: Simplify right side
    9,340.05x = 66,356,850.56
  5. Step 5: Solve for x
    x = 66,356,850.56/9,340.05
  6. Step 6: Final answer
    x = 7,104.55

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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.