Home / 14,913.38-20,580.72-8,199.30

Finding the Fourth Proportional to 14,913.38, 20,580.72 and 8,199.30

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Solution

The fourth proportional to 14,913.38, 20,580.72 and 8,199.30 is: 11,315.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913.38 : 20,580.72 = 8,199.30 : x
  2. Step 2: Convert to fraction form
    14,913.38/20,580.72 = 8,199.30/x
  3. Step 3: Cross multiply
    14,913.38x = 20,580.72 × 8,199.30
  4. Step 4: Simplify right side
    14,913.38x = 168,747,497.50
  5. Step 5: Solve for x
    x = 168,747,497.50/14,913.38
  6. Step 6: Final answer
    x = 11,315.17

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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.