Home / 9,341.24-12,890.46-5,149.40

Finding the Fourth Proportional to 9,341.24, 12,890.46 and 5,149.40

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Solution

The fourth proportional to 9,341.24, 12,890.46 and 5,149.40 is: 7,105.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,341.24 : 12,890.46 = 5,149.40 : x
  2. Step 2: Convert to fraction form
    9,341.24/12,890.46 = 5,149.40/x
  3. Step 3: Cross multiply
    9,341.24x = 12,890.46 × 5,149.40
  4. Step 4: Simplify right side
    9,341.24x = 66,378,134.72
  5. Step 5: Solve for x
    x = 66,378,134.72/9,341.24
  6. Step 6: Final answer
    x = 7,105.92

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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.