Home / 16,911.78-25,361.10-5,816.40

Finding the Fourth Proportional to 16,911.78, 25,361.10 and 5,816.40

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Solution

The fourth proportional to 16,911.78, 25,361.10 and 5,816.40 is: 8,722.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,911.78 : 25,361.10 = 5,816.40 : x
  2. Step 2: Convert to fraction form
    16,911.78/25,361.10 = 5,816.40/x
  3. Step 3: Cross multiply
    16,911.78x = 25,361.10 × 5,816.40
  4. Step 4: Simplify right side
    16,911.78x = 147,510,302.04
  5. Step 5: Solve for x
    x = 147,510,302.04/16,911.78
  6. Step 6: Final answer
    x = 8,722.34

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1.5x scale

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.