Home / 14,781.84-22,178.64-5,422.56

Finding the Fourth Proportional to 14,781.84, 22,178.64 and 5,422.56

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Solution

The fourth proportional to 14,781.84, 22,178.64 and 5,422.56 is: 8,136.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.84 : 22,178.64 = 5,422.56 : x
  2. Step 2: Convert to fraction form
    14,781.84/22,178.64 = 5,422.56/x
  3. Step 3: Cross multiply
    14,781.84x = 22,178.64 × 5,422.56
  4. Step 4: Simplify right side
    14,781.84x = 120,265,006.12
  5. Step 5: Solve for x
    x = 120,265,006.12/14,781.84
  6. Step 6: Final answer
    x = 8,136.00

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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.