Home / 13,979.92-19,300.28-9,270.60

Finding the Fourth Proportional to 13,979.92, 19,300.28 and 9,270.60

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Solution

The fourth proportional to 13,979.92, 19,300.28 and 9,270.60 is: 12,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.92 : 19,300.28 = 9,270.60 : x
  2. Step 2: Convert to fraction form
    13,979.92/19,300.28 = 9,270.60/x
  3. Step 3: Cross multiply
    13,979.92x = 19,300.28 × 9,270.60
  4. Step 4: Simplify right side
    13,979.92x = 178,925,175.77
  5. Step 5: Solve for x
    x = 178,925,175.77/13,979.92
  6. Step 6: Final answer
    x = 12,798.73

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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.