Home / 10,981.32-16,476.30-4,821

Finding the Fourth Proportional to 10,981.32, 16,476.30 and 4,821

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Solution

The fourth proportional to 10,981.32, 16,476.30 and 4,821 is: 7,233.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,981.32 : 16,476.30 = 4,821 : x
  2. Step 2: Convert to fraction form
    10,981.32/16,476.30 = 4,821/x
  3. Step 3: Cross multiply
    10,981.32x = 16,476.30 × 4,821
  4. Step 4: Simplify right side
    10,981.32x = 79,432,242.30
  5. Step 5: Solve for x
    x = 79,432,242.30/10,981.32
  6. Step 6: Final answer
    x = 7,233.40

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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.