Home / 14,020.38-21,020.13-6,620.62

Finding the Fourth Proportional to 14,020.38, 21,020.13 and 6,620.62

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Solution

The fourth proportional to 14,020.38, 21,020.13 and 6,620.62 is: 9,926.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,020.38 : 21,020.13 = 6,620.62 : x
  2. Step 2: Convert to fraction form
    14,020.38/21,020.13 = 6,620.62/x
  3. Step 3: Cross multiply
    14,020.38x = 21,020.13 × 6,620.62
  4. Step 4: Simplify right side
    14,020.38x = 139,166,293.08
  5. Step 5: Solve for x
    x = 139,166,293.08/14,020.38
  6. Step 6: Final answer
    x = 9,926.00

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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.