Home / 18,038.40-27,071.56-11,796.72

Finding the Fourth Proportional to 18,038.40, 27,071.56 and 11,796.72

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Solution

The fourth proportional to 18,038.40, 27,071.56 and 11,796.72 is: 17,704.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,038.40 : 27,071.56 = 11,796.72 : x
  2. Step 2: Convert to fraction form
    18,038.40/27,071.56 = 11,796.72/x
  3. Step 3: Cross multiply
    18,038.40x = 27,071.56 × 11,796.72
  4. Step 4: Simplify right side
    18,038.40x = 319,355,613.28
  5. Step 5: Solve for x
    x = 319,355,613.28/18,038.40
  6. Step 6: Final answer
    x = 17,704.21

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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.