Home / 14,613.28-21,925.68-5,380

Finding the Fourth Proportional to 14,613.28, 21,925.68 and 5,380

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Solution

The fourth proportional to 14,613.28, 21,925.68 and 5,380 is: 8,072.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,613.28 : 21,925.68 = 5,380 : x
  2. Step 2: Convert to fraction form
    14,613.28/21,925.68 = 5,380/x
  3. Step 3: Cross multiply
    14,613.28x = 21,925.68 × 5,380
  4. Step 4: Simplify right side
    14,613.28x = 117,960,158.40
  5. Step 5: Solve for x
    x = 117,960,158.40/14,613.28
  6. Step 6: Final answer
    x = 8,072.12

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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.