Home / 13,009.40-17,948.14-8,292.60

Finding the Fourth Proportional to 13,009.40, 17,948.14 and 8,292.60

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Solution

The fourth proportional to 13,009.40, 17,948.14 and 8,292.60 is: 11,440.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009.40 : 17,948.14 = 8,292.60 : x
  2. Step 2: Convert to fraction form
    13,009.40/17,948.14 = 8,292.60/x
  3. Step 3: Cross multiply
    13,009.40x = 17,948.14 × 8,292.60
  4. Step 4: Simplify right side
    13,009.40x = 148,836,745.76
  5. Step 5: Solve for x
    x = 148,836,745.76/13,009.40
  6. Step 6: Final answer
    x = 11,440.71

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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.