Home / 14,042.30-21,063.89-6,140.75

Finding the Fourth Proportional to 14,042.30, 21,063.89 and 6,140.75

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Solution

The fourth proportional to 14,042.30, 21,063.89 and 6,140.75 is: 9,211.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,042.30 : 21,063.89 = 6,140.75 : x
  2. Step 2: Convert to fraction form
    14,042.30/21,063.89 = 6,140.75/x
  3. Step 3: Cross multiply
    14,042.30x = 21,063.89 × 6,140.75
  4. Step 4: Simplify right side
    14,042.30x = 129,348,054.90
  5. Step 5: Solve for x
    x = 129,348,054.90/14,042.30
  6. Step 6: Final answer
    x = 9,211.31

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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.