Home / 13,195.79-18,208.01-7,530.54

Finding the Fourth Proportional to 13,195.79, 18,208.01 and 7,530.54

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Solution

The fourth proportional to 13,195.79, 18,208.01 and 7,530.54 is: 10,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195.79 : 18,208.01 = 7,530.54 : x
  2. Step 2: Convert to fraction form
    13,195.79/18,208.01 = 7,530.54/x
  3. Step 3: Cross multiply
    13,195.79x = 18,208.01 × 7,530.54
  4. Step 4: Simplify right side
    13,195.79x = 137,116,147.63
  5. Step 5: Solve for x
    x = 137,116,147.63/13,195.79
  6. Step 6: Final answer
    x = 10,390.90

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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.