Home / 9,390.30-12,958.29-5,198.28

Finding the Fourth Proportional to 9,390.30, 12,958.29 and 5,198.28

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Solution

The fourth proportional to 9,390.30, 12,958.29 and 5,198.28 is: 7,173.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.30 : 12,958.29 = 5,198.28 : x
  2. Step 2: Convert to fraction form
    9,390.30/12,958.29 = 5,198.28/x
  3. Step 3: Cross multiply
    9,390.30x = 12,958.29 × 5,198.28
  4. Step 4: Simplify right side
    9,390.30x = 67,360,819.74
  5. Step 5: Solve for x
    x = 67,360,819.74/9,390.30
  6. Step 6: Final answer
    x = 7,173.45

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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.