Home / 16,720.10-25,080.30-6,855.51

Finding the Fourth Proportional to 16,720.10, 25,080.30 and 6,855.51

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Solution

The fourth proportional to 16,720.10, 25,080.30 and 6,855.51 is: 10,283.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,720.10 : 25,080.30 = 6,855.51 : x
  2. Step 2: Convert to fraction form
    16,720.10/25,080.30 = 6,855.51/x
  3. Step 3: Cross multiply
    16,720.10x = 25,080.30 × 6,855.51
  4. Step 4: Simplify right side
    16,720.10x = 171,938,247.45
  5. Step 5: Solve for x
    x = 171,938,247.45/16,720.10
  6. Step 6: Final answer
    x = 10,283.33

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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.