Home / 9,455.29-13,020.16-9,245.51

Finding the Fourth Proportional to 9,455.29, 13,020.16 and 9,245.51

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Solution

The fourth proportional to 9,455.29, 13,020.16 and 9,245.51 is: 12,731.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,455.29 : 13,020.16 = 9,245.51 : x
  2. Step 2: Convert to fraction form
    9,455.29/13,020.16 = 9,245.51/x
  3. Step 3: Cross multiply
    9,455.29x = 13,020.16 × 9,245.51
  4. Step 4: Simplify right side
    9,455.29x = 120,378,019.48
  5. Step 5: Solve for x
    x = 120,378,019.48/9,455.29
  6. Step 6: Final answer
    x = 12,731.29

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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.