Home / 14,369.84-19,830.56-8,082.21

Finding the Fourth Proportional to 14,369.84, 19,830.56 and 8,082.21

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Solution

The fourth proportional to 14,369.84, 19,830.56 and 8,082.21 is: 11,153.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,369.84 : 19,830.56 = 8,082.21 : x
  2. Step 2: Convert to fraction form
    14,369.84/19,830.56 = 8,082.21/x
  3. Step 3: Cross multiply
    14,369.84x = 19,830.56 × 8,082.21
  4. Step 4: Simplify right side
    14,369.84x = 160,274,709.93
  5. Step 5: Solve for x
    x = 160,274,709.93/14,369.84
  6. Step 6: Final answer
    x = 11,153.55

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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.