Home / 11,214.77-16,818.21-3,315.17

Finding the Fourth Proportional to 11,214.77, 16,818.21 and 3,315.17

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Solution

The fourth proportional to 11,214.77, 16,818.21 and 3,315.17 is: 4,971.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,214.77 : 16,818.21 = 3,315.17 : x
  2. Step 2: Convert to fraction form
    11,214.77/16,818.21 = 3,315.17/x
  3. Step 3: Cross multiply
    11,214.77x = 16,818.21 × 3,315.17
  4. Step 4: Simplify right side
    11,214.77x = 55,755,267.29
  5. Step 5: Solve for x
    x = 55,755,267.29/11,214.77
  6. Step 6: Final answer
    x = 4,971.59

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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.