Home / 14,278.68-21,411.81-6,784.41

Finding the Fourth Proportional to 14,278.68, 21,411.81 and 6,784.41

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Solution

The fourth proportional to 14,278.68, 21,411.81 and 6,784.41 is: 10,173.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.68 : 21,411.81 = 6,784.41 : x
  2. Step 2: Convert to fraction form
    14,278.68/21,411.81 = 6,784.41/x
  3. Step 3: Cross multiply
    14,278.68x = 21,411.81 × 6,784.41
  4. Step 4: Simplify right side
    14,278.68x = 145,266,497.88
  5. Step 5: Solve for x
    x = 145,266,497.88/14,278.68
  6. Step 6: Final answer
    x = 10,173.66

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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.