Home / 13,579.52-18,741.11-7,612.25

Finding the Fourth Proportional to 13,579.52, 18,741.11 and 7,612.25

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Solution

The fourth proportional to 13,579.52, 18,741.11 and 7,612.25 is: 10,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.52 : 18,741.11 = 7,612.25 : x
  2. Step 2: Convert to fraction form
    13,579.52/18,741.11 = 7,612.25/x
  3. Step 3: Cross multiply
    13,579.52x = 18,741.11 × 7,612.25
  4. Step 4: Simplify right side
    13,579.52x = 142,661,882.83
  5. Step 5: Solve for x
    x = 142,661,882.83/13,579.52
  6. Step 6: Final answer
    x = 10,505.67

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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.