Home / 9,612.75-13,265.60-5,421.27

Finding the Fourth Proportional to 9,612.75, 13,265.60 and 5,421.27

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Solution

The fourth proportional to 9,612.75, 13,265.60 and 5,421.27 is: 7,481.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.75 : 13,265.60 = 5,421.27 : x
  2. Step 2: Convert to fraction form
    9,612.75/13,265.60 = 5,421.27/x
  3. Step 3: Cross multiply
    9,612.75x = 13,265.60 × 5,421.27
  4. Step 4: Simplify right side
    9,612.75x = 71,916,372.21
  5. Step 5: Solve for x
    x = 71,916,372.21/9,612.75
  6. Step 6: Final answer
    x = 7,481.35

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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.