Home / 13,215.03-18,236.34-7,246.60

Finding the Fourth Proportional to 13,215.03, 18,236.34 and 7,246.60

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Solution

The fourth proportional to 13,215.03, 18,236.34 and 7,246.60 is: 10,000.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.03 : 18,236.34 = 7,246.60 : x
  2. Step 2: Convert to fraction form
    13,215.03/18,236.34 = 7,246.60/x
  3. Step 3: Cross multiply
    13,215.03x = 18,236.34 × 7,246.60
  4. Step 4: Simplify right side
    13,215.03x = 132,151,461.44
  5. Step 5: Solve for x
    x = 132,151,461.44/13,215.03
  6. Step 6: Final answer
    x = 10,000.09

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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.