Home / 9,341.47-12,891.32-5,149.87

Finding the Fourth Proportional to 9,341.47, 12,891.32 and 5,149.87

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Solution

The fourth proportional to 9,341.47, 12,891.32 and 5,149.87 is: 7,106.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,341.47 : 12,891.32 = 5,149.87 : x
  2. Step 2: Convert to fraction form
    9,341.47/12,891.32 = 5,149.87/x
  3. Step 3: Cross multiply
    9,341.47x = 12,891.32 × 5,149.87
  4. Step 4: Simplify right side
    9,341.47x = 66,388,622.13
  5. Step 5: Solve for x
    x = 66,388,622.13/9,341.47
  6. Step 6: Final answer
    x = 7,106.87

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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.