Home / 14,141.67-21,207.60-4,278.30

Finding the Fourth Proportional to 14,141.67, 21,207.60 and 4,278.30

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Solution

The fourth proportional to 14,141.67, 21,207.60 and 4,278.30 is: 6,415.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.67 : 21,207.60 = 4,278.30 : x
  2. Step 2: Convert to fraction form
    14,141.67/21,207.60 = 4,278.30/x
  3. Step 3: Cross multiply
    14,141.67x = 21,207.60 × 4,278.30
  4. Step 4: Simplify right side
    14,141.67x = 90,732,475.08
  5. Step 5: Solve for x
    x = 90,732,475.08/14,141.67
  6. Step 6: Final answer
    x = 6,415.97

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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.