Home / 13,160.22-18,160.85-7,191.87

Finding the Fourth Proportional to 13,160.22, 18,160.85 and 7,191.87

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Solution

The fourth proportional to 13,160.22, 18,160.85 and 7,191.87 is: 9,924.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.22 : 18,160.85 = 7,191.87 : x
  2. Step 2: Convert to fraction form
    13,160.22/18,160.85 = 7,191.87/x
  3. Step 3: Cross multiply
    13,160.22x = 18,160.85 × 7,191.87
  4. Step 4: Simplify right side
    13,160.22x = 130,610,436.33
  5. Step 5: Solve for x
    x = 130,610,436.33/13,160.22
  6. Step 6: Final answer
    x = 9,924.64

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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.