Home / 13,160.20-19,733.90-7,310.60

Finding the Fourth Proportional to 13,160.20, 19,733.90 and 7,310.60

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Solution

The fourth proportional to 13,160.20, 19,733.90 and 7,310.60 is: 10,962.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.20 : 19,733.90 = 7,310.60 : x
  2. Step 2: Convert to fraction form
    13,160.20/19,733.90 = 7,310.60/x
  3. Step 3: Cross multiply
    13,160.20x = 19,733.90 × 7,310.60
  4. Step 4: Simplify right side
    13,160.20x = 144,266,649.34
  5. Step 5: Solve for x
    x = 144,266,649.34/13,160.20
  6. Step 6: Final answer
    x = 10,962.34

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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.