Home / 13,177.24-18,153.80-9,191.24

Finding the Fourth Proportional to 13,177.24, 18,153.80 and 9,191.24

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Solution

The fourth proportional to 13,177.24, 18,153.80 and 9,191.24 is: 12,662.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.24 : 18,153.80 = 9,191.24 : x
  2. Step 2: Convert to fraction form
    13,177.24/18,153.80 = 9,191.24/x
  3. Step 3: Cross multiply
    13,177.24x = 18,153.80 × 9,191.24
  4. Step 4: Simplify right side
    13,177.24x = 166,855,932.71
  5. Step 5: Solve for x
    x = 166,855,932.71/13,177.24
  6. Step 6: Final answer
    x = 12,662.43

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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.