Home / 12,132.75-18,188.29-4,735.48

Finding the Fourth Proportional to 12,132.75, 18,188.29 and 4,735.48

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Solution

The fourth proportional to 12,132.75, 18,188.29 and 4,735.48 is: 7,098.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.75 : 18,188.29 = 4,735.48 : x
  2. Step 2: Convert to fraction form
    12,132.75/18,188.29 = 4,735.48/x
  3. Step 3: Cross multiply
    12,132.75x = 18,188.29 × 4,735.48
  4. Step 4: Simplify right side
    12,132.75x = 86,130,283.53
  5. Step 5: Solve for x
    x = 86,130,283.53/12,132.75
  6. Step 6: Final answer
    x = 7,098.99

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1.5x scale

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.