Home / 19,402.21-26,749.51-12,676.15

Finding the Fourth Proportional to 19,402.21, 26,749.51 and 12,676.15

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Solution

The fourth proportional to 19,402.21, 26,749.51 and 12,676.15 is: 17,476.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,402.21 : 26,749.51 = 12,676.15 : x
  2. Step 2: Convert to fraction form
    19,402.21/26,749.51 = 12,676.15/x
  3. Step 3: Cross multiply
    19,402.21x = 26,749.51 × 12,676.15
  4. Step 4: Simplify right side
    19,402.21x = 339,080,801.19
  5. Step 5: Solve for x
    x = 339,080,801.19/19,402.21
  6. Step 6: Final answer
    x = 17,476.40

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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.