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Finding the Fourth Proportional to 14,260.53, 19,678.96 and 7,886.71

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Solution

The fourth proportional to 14,260.53, 19,678.96 and 7,886.71 is: 10,883.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,260.53 : 19,678.96 = 7,886.71 : x
  2. Step 2: Convert to fraction form
    14,260.53/19,678.96 = 7,886.71/x
  3. Step 3: Cross multiply
    14,260.53x = 19,678.96 × 7,886.71
  4. Step 4: Simplify right side
    14,260.53x = 155,202,250.62
  5. Step 5: Solve for x
    x = 155,202,250.62/14,260.53
  6. Step 6: Final answer
    x = 10,883.34

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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.