Home / 13,785.93-20,666.07-5,018.85

Finding the Fourth Proportional to 13,785.93, 20,666.07 and 5,018.85

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Solution

The fourth proportional to 13,785.93, 20,666.07 and 5,018.85 is: 7,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.93 : 20,666.07 = 5,018.85 : x
  2. Step 2: Convert to fraction form
    13,785.93/20,666.07 = 5,018.85/x
  3. Step 3: Cross multiply
    13,785.93x = 20,666.07 × 5,018.85
  4. Step 4: Simplify right side
    13,785.93x = 103,719,905.42
  5. Step 5: Solve for x
    x = 103,719,905.42/13,785.93
  6. Step 6: Final answer
    x = 7,523.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.