Home / 14,006.96-21,010.38-3,618.68

Finding the Fourth Proportional to 14,006.96, 21,010.38 and 3,618.68

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Solution

The fourth proportional to 14,006.96, 21,010.38 and 3,618.68 is: 5,428.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.96 : 21,010.38 = 3,618.68 : x
  2. Step 2: Convert to fraction form
    14,006.96/21,010.38 = 3,618.68/x
  3. Step 3: Cross multiply
    14,006.96x = 21,010.38 × 3,618.68
  4. Step 4: Simplify right side
    14,006.96x = 76,029,841.90
  5. Step 5: Solve for x
    x = 76,029,841.90/14,006.96
  6. Step 6: Final answer
    x = 5,428.00

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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.