Home / 13,085.88-19,621.36-8,930.92

Finding the Fourth Proportional to 13,085.88, 19,621.36 and 8,930.92

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Solution

The fourth proportional to 13,085.88, 19,621.36 and 8,930.92 is: 13,391.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.88 : 19,621.36 = 8,930.92 : x
  2. Step 2: Convert to fraction form
    13,085.88/19,621.36 = 8,930.92/x
  3. Step 3: Cross multiply
    13,085.88x = 19,621.36 × 8,930.92
  4. Step 4: Simplify right side
    13,085.88x = 175,236,820.47
  5. Step 5: Solve for x
    x = 175,236,820.47/13,085.88
  6. Step 6: Final answer
    x = 13,391.29

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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.