Home / 13,208.42-19,814.34-5,415.38

Finding the Fourth Proportional to 13,208.42, 19,814.34 and 5,415.38

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Solution

The fourth proportional to 13,208.42, 19,814.34 and 5,415.38 is: 8,123.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,208.42 : 19,814.34 = 5,415.38 : x
  2. Step 2: Convert to fraction form
    13,208.42/19,814.34 = 5,415.38/x
  3. Step 3: Cross multiply
    13,208.42x = 19,814.34 × 5,415.38
  4. Step 4: Simplify right side
    13,208.42x = 107,302,180.55
  5. Step 5: Solve for x
    x = 107,302,180.55/13,208.42
  6. Step 6: Final answer
    x = 8,123.77

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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.