Home / 15,693.90-23,542.20-5,160.75

Finding the Fourth Proportional to 15,693.90, 23,542.20 and 5,160.75

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Solution

The fourth proportional to 15,693.90, 23,542.20 and 5,160.75 is: 7,741.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.90 : 23,542.20 = 5,160.75 : x
  2. Step 2: Convert to fraction form
    15,693.90/23,542.20 = 5,160.75/x
  3. Step 3: Cross multiply
    15,693.90x = 23,542.20 × 5,160.75
  4. Step 4: Simplify right side
    15,693.90x = 121,495,408.65
  5. Step 5: Solve for x
    x = 121,495,408.65/15,693.90
  6. Step 6: Final answer
    x = 7,741.57

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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.