Home / 13,658.05-20,499.83-7,088.85

Finding the Fourth Proportional to 13,658.05, 20,499.83 and 7,088.85

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Solution

The fourth proportional to 13,658.05, 20,499.83 and 7,088.85 is: 10,639.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,658.05 : 20,499.83 = 7,088.85 : x
  2. Step 2: Convert to fraction form
    13,658.05/20,499.83 = 7,088.85/x
  3. Step 3: Cross multiply
    13,658.05x = 20,499.83 × 7,088.85
  4. Step 4: Simplify right side
    13,658.05x = 145,320,081.95
  5. Step 5: Solve for x
    x = 145,320,081.95/13,658.05
  6. Step 6: Final answer
    x = 10,639.89

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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.