Home / 9,453.40-13,055.12-7,791.28

Finding the Fourth Proportional to 9,453.40, 13,055.12 and 7,791.28

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Solution

The fourth proportional to 9,453.40, 13,055.12 and 7,791.28 is: 10,759.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,453.40 : 13,055.12 = 7,791.28 : x
  2. Step 2: Convert to fraction form
    9,453.40/13,055.12 = 7,791.28/x
  3. Step 3: Cross multiply
    9,453.40x = 13,055.12 × 7,791.28
  4. Step 4: Simplify right side
    9,453.40x = 101,716,095.35
  5. Step 5: Solve for x
    x = 101,716,095.35/9,453.40
  6. Step 6: Final answer
    x = 10,759.74

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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.