Home / 15,043.03-20,759.13-8,328.51

Finding the Fourth Proportional to 15,043.03, 20,759.13 and 8,328.51

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Solution

The fourth proportional to 15,043.03, 20,759.13 and 8,328.51 is: 11,493.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.03 : 20,759.13 = 8,328.51 : x
  2. Step 2: Convert to fraction form
    15,043.03/20,759.13 = 8,328.51/x
  3. Step 3: Cross multiply
    15,043.03x = 20,759.13 × 8,328.51
  4. Step 4: Simplify right side
    15,043.03x = 172,892,621.80
  5. Step 5: Solve for x
    x = 172,892,621.80/15,043.03
  6. Step 6: Final answer
    x = 11,493.21

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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.