Home / 13,150.08-18,146.41-7,180.58

Finding the Fourth Proportional to 13,150.08, 18,146.41 and 7,180.58

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Solution

The fourth proportional to 13,150.08, 18,146.41 and 7,180.58 is: 9,908.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150.08 : 18,146.41 = 7,180.58 : x
  2. Step 2: Convert to fraction form
    13,150.08/18,146.41 = 7,180.58/x
  3. Step 3: Cross multiply
    13,150.08x = 18,146.41 × 7,180.58
  4. Step 4: Simplify right side
    13,150.08x = 130,301,776.13
  5. Step 5: Solve for x
    x = 130,301,776.13/13,150.08
  6. Step 6: Final answer
    x = 9,908.82

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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.