Home / 12,157.04-18,216.08-11,729.36

Finding the Fourth Proportional to 12,157.04, 18,216.08 and 11,729.36

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Solution

The fourth proportional to 12,157.04, 18,216.08 and 11,729.36 is: 17,575.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,157.04 : 18,216.08 = 11,729.36 : x
  2. Step 2: Convert to fraction form
    12,157.04/18,216.08 = 11,729.36/x
  3. Step 3: Cross multiply
    12,157.04x = 18,216.08 × 11,729.36
  4. Step 4: Simplify right side
    12,157.04x = 213,662,960.11
  5. Step 5: Solve for x
    x = 213,662,960.11/12,157.04
  6. Step 6: Final answer
    x = 17,575.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.