Home / 9,538.16-13,163.45-5,290.11

Finding the Fourth Proportional to 9,538.16, 13,163.45 and 5,290.11

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Solution

The fourth proportional to 9,538.16, 13,163.45 and 5,290.11 is: 7,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,538.16 : 13,163.45 = 5,290.11 : x
  2. Step 2: Convert to fraction form
    9,538.16/13,163.45 = 5,290.11/x
  3. Step 3: Cross multiply
    9,538.16x = 13,163.45 × 5,290.11
  4. Step 4: Simplify right side
    9,538.16x = 69,636,072.03
  5. Step 5: Solve for x
    x = 69,636,072.03/9,538.16
  6. Step 6: Final answer
    x = 7,300.79

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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.