Home / 9,391.26-12,960.21-5,199.51

Finding the Fourth Proportional to 9,391.26, 12,960.21 and 5,199.51

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Solution

The fourth proportional to 9,391.26, 12,960.21 and 5,199.51 is: 7,175.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,391.26 : 12,960.21 = 5,199.51 : x
  2. Step 2: Convert to fraction form
    9,391.26/12,960.21 = 5,199.51/x
  3. Step 3: Cross multiply
    9,391.26x = 12,960.21 × 5,199.51
  4. Step 4: Simplify right side
    9,391.26x = 67,386,741.50
  5. Step 5: Solve for x
    x = 67,386,741.50/9,391.26
  6. Step 6: Final answer
    x = 7,175.47

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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.