Home / 9,638.60-13,302.45-5,660.09

Finding the Fourth Proportional to 9,638.60, 13,302.45 and 5,660.09

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Solution

The fourth proportional to 9,638.60, 13,302.45 and 5,660.09 is: 7,811.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,638.60 : 13,302.45 = 5,660.09 : x
  2. Step 2: Convert to fraction form
    9,638.60/13,302.45 = 5,660.09/x
  3. Step 3: Cross multiply
    9,638.60x = 13,302.45 × 5,660.09
  4. Step 4: Simplify right side
    9,638.60x = 75,292,997.71
  5. Step 5: Solve for x
    x = 75,292,997.71/9,638.60
  6. Step 6: Final answer
    x = 7,811.61

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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.