Home / 18,899.96-26,090.36-13,864.12

Finding the Fourth Proportional to 18,899.96, 26,090.36 and 13,864.12

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Solution

The fourth proportional to 18,899.96, 26,090.36 and 13,864.12 is: 19,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,899.96 : 26,090.36 = 13,864.12 : x
  2. Step 2: Convert to fraction form
    18,899.96/26,090.36 = 13,864.12/x
  3. Step 3: Cross multiply
    18,899.96x = 26,090.36 × 13,864.12
  4. Step 4: Simplify right side
    18,899.96x = 361,719,881.88
  5. Step 5: Solve for x
    x = 361,719,881.88/18,899.96
  6. Step 6: Final answer
    x = 19,138.66

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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.