Home / 13,308.53-18,368.12-8,003.70

Finding the Fourth Proportional to 13,308.53, 18,368.12 and 8,003.70

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Solution

The fourth proportional to 13,308.53, 18,368.12 and 8,003.70 is: 11,046.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.53 : 18,368.12 = 8,003.70 : x
  2. Step 2: Convert to fraction form
    13,308.53/18,368.12 = 8,003.70/x
  3. Step 3: Cross multiply
    13,308.53x = 18,368.12 × 8,003.70
  4. Step 4: Simplify right side
    13,308.53x = 147,012,942.05
  5. Step 5: Solve for x
    x = 147,012,942.05/13,308.53
  6. Step 6: Final answer
    x = 11,046.52

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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.