Home / 13,341.62-18,409.85-7,963.07

Finding the Fourth Proportional to 13,341.62, 18,409.85 and 7,963.07

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Solution

The fourth proportional to 13,341.62, 18,409.85 and 7,963.07 is: 10,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.62 : 18,409.85 = 7,963.07 : x
  2. Step 2: Convert to fraction form
    13,341.62/18,409.85 = 7,963.07/x
  3. Step 3: Cross multiply
    13,341.62x = 18,409.85 × 7,963.07
  4. Step 4: Simplify right side
    13,341.62x = 146,598,884.42
  5. Step 5: Solve for x
    x = 146,598,884.42/13,341.62
  6. Step 6: Final answer
    x = 10,988.09

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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.