Home / 13,117.22-19,676.31-5,325.86

Finding the Fourth Proportional to 13,117.22, 19,676.31 and 5,325.86

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Solution

The fourth proportional to 13,117.22, 19,676.31 and 5,325.86 is: 7,988.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117.22 : 19,676.31 = 5,325.86 : x
  2. Step 2: Convert to fraction form
    13,117.22/19,676.31 = 5,325.86/x
  3. Step 3: Cross multiply
    13,117.22x = 19,676.31 × 5,325.86
  4. Step 4: Simplify right side
    13,117.22x = 104,793,272.38
  5. Step 5: Solve for x
    x = 104,793,272.38/13,117.22
  6. Step 6: Final answer
    x = 7,988.98

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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.