Home / 13,373.05-18,455.55-7,404.59

Finding the Fourth Proportional to 13,373.05, 18,455.55 and 7,404.59

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Solution

The fourth proportional to 13,373.05, 18,455.55 and 7,404.59 is: 10,218.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.05 : 18,455.55 = 7,404.59 : x
  2. Step 2: Convert to fraction form
    13,373.05/18,455.55 = 7,404.59/x
  3. Step 3: Cross multiply
    13,373.05x = 18,455.55 × 7,404.59
  4. Step 4: Simplify right side
    13,373.05x = 136,655,747.44
  5. Step 5: Solve for x
    x = 136,655,747.44/13,373.05
  6. Step 6: Final answer
    x = 10,218.74

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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.