Home / 14,155.73-21,213.44-10,428.65

Finding the Fourth Proportional to 14,155.73, 21,213.44 and 10,428.65

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Solution

The fourth proportional to 14,155.73, 21,213.44 and 10,428.65 is: 15,628.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,155.73 : 21,213.44 = 10,428.65 : x
  2. Step 2: Convert to fraction form
    14,155.73/21,213.44 = 10,428.65/x
  3. Step 3: Cross multiply
    14,155.73x = 21,213.44 × 10,428.65
  4. Step 4: Simplify right side
    14,155.73x = 221,227,382.85
  5. Step 5: Solve for x
    x = 221,227,382.85/14,155.73
  6. Step 6: Final answer
    x = 15,628.12

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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.