Home / 14,141.44-21,209.10-4,278.70

Finding the Fourth Proportional to 14,141.44, 21,209.10 and 4,278.70

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Solution

The fourth proportional to 14,141.44, 21,209.10 and 4,278.70 is: 6,417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,141.44 : 21,209.10 = 4,278.70 : x
  2. Step 2: Convert to fraction form
    14,141.44/21,209.10 = 4,278.70/x
  3. Step 3: Cross multiply
    14,141.44x = 21,209.10 × 4,278.70
  4. Step 4: Simplify right side
    14,141.44x = 90,747,376.17
  5. Step 5: Solve for x
    x = 90,747,376.17/14,141.44
  6. Step 6: Final answer
    x = 6,417.12

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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.