Home / 13,300.79-19,963.49-6,731.60

Finding the Fourth Proportional to 13,300.79, 19,963.49 and 6,731.60

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Solution

The fourth proportional to 13,300.79, 19,963.49 and 6,731.60 is: 10,103.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.79 : 19,963.49 = 6,731.60 : x
  2. Step 2: Convert to fraction form
    13,300.79/19,963.49 = 6,731.60/x
  3. Step 3: Cross multiply
    13,300.79x = 19,963.49 × 6,731.60
  4. Step 4: Simplify right side
    13,300.79x = 134,386,095.81
  5. Step 5: Solve for x
    x = 134,386,095.81/13,300.79
  6. Step 6: Final answer
    x = 10,103.62

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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.