Home / 15,090.10-20,834.49-11,546.98

Finding the Fourth Proportional to 15,090.10, 20,834.49 and 11,546.98

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Solution

The fourth proportional to 15,090.10, 20,834.49 and 11,546.98 is: 15,942.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,090.10 : 20,834.49 = 11,546.98 : x
  2. Step 2: Convert to fraction form
    15,090.10/20,834.49 = 11,546.98/x
  3. Step 3: Cross multiply
    15,090.10x = 20,834.49 × 11,546.98
  4. Step 4: Simplify right side
    15,090.10x = 240,575,439.34
  5. Step 5: Solve for x
    x = 240,575,439.34/15,090.10
  6. Step 6: Final answer
    x = 15,942.60

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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.