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Finding the Fourth Proportional to 14,273.65, 19,696.78 and 7,899.86

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Solution

The fourth proportional to 14,273.65, 19,696.78 and 7,899.86 is: 10,901.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,273.65 : 19,696.78 = 7,899.86 : x
  2. Step 2: Convert to fraction form
    14,273.65/19,696.78 = 7,899.86/x
  3. Step 3: Cross multiply
    14,273.65x = 19,696.78 × 7,899.86
  4. Step 4: Simplify right side
    14,273.65x = 155,601,715.71
  5. Step 5: Solve for x
    x = 155,601,715.71/14,273.65
  6. Step 6: Final answer
    x = 10,901.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.