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Finding the Fourth Proportional to 13,049.76, 18,009.30 and 8,014.20

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Solution

The fourth proportional to 13,049.76, 18,009.30 and 8,014.20 is: 11,059.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,049.76 : 18,009.30 = 8,014.20 : x
  2. Step 2: Convert to fraction form
    13,049.76/18,009.30 = 8,014.20/x
  3. Step 3: Cross multiply
    13,049.76x = 18,009.30 × 8,014.20
  4. Step 4: Simplify right side
    13,049.76x = 144,330,132.06
  5. Step 5: Solve for x
    x = 144,330,132.06/13,049.76
  6. Step 6: Final answer
    x = 11,059.98

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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.