Home / 9,412.29-12,989.33-5,163.51

Finding the Fourth Proportional to 9,412.29, 12,989.33 and 5,163.51

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Solution

The fourth proportional to 9,412.29, 12,989.33 and 5,163.51 is: 7,125.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,412.29 : 12,989.33 = 5,163.51 : x
  2. Step 2: Convert to fraction form
    9,412.29/12,989.33 = 5,163.51/x
  3. Step 3: Cross multiply
    9,412.29x = 12,989.33 × 5,163.51
  4. Step 4: Simplify right side
    9,412.29x = 67,070,535.35
  5. Step 5: Solve for x
    x = 67,070,535.35/9,412.29
  6. Step 6: Final answer
    x = 7,125.85

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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.