Home / 13,299.68-19,950.03-4,978.82

Finding the Fourth Proportional to 13,299.68, 19,950.03 and 4,978.82

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Solution

The fourth proportional to 13,299.68, 19,950.03 and 4,978.82 is: 7,468.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,299.68 : 19,950.03 = 4,978.82 : x
  2. Step 2: Convert to fraction form
    13,299.68/19,950.03 = 4,978.82/x
  3. Step 3: Cross multiply
    13,299.68x = 19,950.03 × 4,978.82
  4. Step 4: Simplify right side
    13,299.68x = 99,327,658.24
  5. Step 5: Solve for x
    x = 99,327,658.24/13,299.68
  6. Step 6: Final answer
    x = 7,468.42

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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.