Home / 13,671.90-20,508.66-4,312.26

Finding the Fourth Proportional to 13,671.90, 20,508.66 and 4,312.26

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Solution

The fourth proportional to 13,671.90, 20,508.66 and 4,312.26 is: 6,468.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,671.90 : 20,508.66 = 4,312.26 : x
  2. Step 2: Convert to fraction form
    13,671.90/20,508.66 = 4,312.26/x
  3. Step 3: Cross multiply
    13,671.90x = 20,508.66 × 4,312.26
  4. Step 4: Simplify right side
    13,671.90x = 88,438,674.17
  5. Step 5: Solve for x
    x = 88,438,674.17/13,671.90
  6. Step 6: Final answer
    x = 6,468.65

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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.