Home / 13,938.03-20,904.21-11,613.06

Finding the Fourth Proportional to 13,938.03, 20,904.21 and 11,613.06

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Solution

The fourth proportional to 13,938.03, 20,904.21 and 11,613.06 is: 17,417.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,938.03 : 20,904.21 = 11,613.06 : x
  2. Step 2: Convert to fraction form
    13,938.03/20,904.21 = 11,613.06/x
  3. Step 3: Cross multiply
    13,938.03x = 20,904.21 × 11,613.06
  4. Step 4: Simplify right side
    13,938.03x = 242,761,844.98
  5. Step 5: Solve for x
    x = 242,761,844.98/13,938.03
  6. Step 6: Final answer
    x = 17,417.23

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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.