Home / 13,132.75-18,122.46-7,466.70

Finding the Fourth Proportional to 13,132.75, 18,122.46 and 7,466.70

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Solution

The fourth proportional to 13,132.75, 18,122.46 and 7,466.70 is: 10,303.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.75 : 18,122.46 = 7,466.70 : x
  2. Step 2: Convert to fraction form
    13,132.75/18,122.46 = 7,466.70/x
  3. Step 3: Cross multiply
    13,132.75x = 18,122.46 × 7,466.70
  4. Step 4: Simplify right side
    13,132.75x = 135,314,910.10
  5. Step 5: Solve for x
    x = 135,314,910.10/13,132.75
  6. Step 6: Final answer
    x = 10,303.62

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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.