Home / 8,789.89-13,186.81-2,946.35

Finding the Fourth Proportional to 8,789.89, 13,186.81 and 2,946.35

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Solution

The fourth proportional to 8,789.89, 13,186.81 and 2,946.35 is: 4,420.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,789.89 : 13,186.81 = 2,946.35 : x
  2. Step 2: Convert to fraction form
    8,789.89/13,186.81 = 2,946.35/x
  3. Step 3: Cross multiply
    8,789.89x = 13,186.81 × 2,946.35
  4. Step 4: Simplify right side
    8,789.89x = 38,852,957.64
  5. Step 5: Solve for x
    x = 38,852,957.64/8,789.89
  6. Step 6: Final answer
    x = 4,420.19

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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.