Home / 14,936.47-20,612.87-8,222.38

Finding the Fourth Proportional to 14,936.47, 20,612.87 and 8,222.38

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Solution

The fourth proportional to 14,936.47, 20,612.87 and 8,222.38 is: 11,347.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,936.47 : 20,612.87 = 8,222.38 : x
  2. Step 2: Convert to fraction form
    14,936.47/20,612.87 = 8,222.38/x
  3. Step 3: Cross multiply
    14,936.47x = 20,612.87 × 8,222.38
  4. Step 4: Simplify right side
    14,936.47x = 169,486,834.47
  5. Step 5: Solve for x
    x = 169,486,834.47/14,936.47
  6. Step 6: Final answer
    x = 11,347.18

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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.