Home / 13,132.37-18,122.64-7,164.04

Finding the Fourth Proportional to 13,132.37, 18,122.64 and 7,164.04

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Solution

The fourth proportional to 13,132.37, 18,122.64 and 7,164.04 is: 9,886.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,132.37 : 18,122.64 = 7,164.04 : x
  2. Step 2: Convert to fraction form
    13,132.37/18,122.64 = 7,164.04/x
  3. Step 3: Cross multiply
    13,132.37x = 18,122.64 × 7,164.04
  4. Step 4: Simplify right side
    13,132.37x = 129,831,245.69
  5. Step 5: Solve for x
    x = 129,831,245.69/13,132.37
  6. Step 6: Final answer
    x = 9,886.35

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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.