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Finding the Fourth Proportional to 13,334.40, 18,408.80 and 8,030.52

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Solution

The fourth proportional to 13,334.40, 18,408.80 and 8,030.52 is: 11,086.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,334.40 : 18,408.80 = 8,030.52 : x
  2. Step 2: Convert to fraction form
    13,334.40/18,408.80 = 8,030.52/x
  3. Step 3: Cross multiply
    13,334.40x = 18,408.80 × 8,030.52
  4. Step 4: Simplify right side
    13,334.40x = 147,832,236.58
  5. Step 5: Solve for x
    x = 147,832,236.58/13,334.40
  6. Step 6: Final answer
    x = 11,086.53

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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.