Home / 9,516.72-13,133.04-5,209.76

Finding the Fourth Proportional to 9,516.72, 13,133.04 and 5,209.76

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Solution

The fourth proportional to 9,516.72, 13,133.04 and 5,209.76 is: 7,189.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,516.72 : 13,133.04 = 5,209.76 : x
  2. Step 2: Convert to fraction form
    9,516.72/13,133.04 = 5,209.76/x
  3. Step 3: Cross multiply
    9,516.72x = 13,133.04 × 5,209.76
  4. Step 4: Simplify right side
    9,516.72x = 68,419,986.47
  5. Step 5: Solve for x
    x = 68,419,986.47/9,516.72
  6. Step 6: Final answer
    x = 7,189.45

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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.