Home / 13,693.82-18,893.05-10,813.40

Finding the Fourth Proportional to 13,693.82, 18,893.05 and 10,813.40

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Solution

The fourth proportional to 13,693.82, 18,893.05 and 10,813.40 is: 14,919.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.82 : 18,893.05 = 10,813.40 : x
  2. Step 2: Convert to fraction form
    13,693.82/18,893.05 = 10,813.40/x
  3. Step 3: Cross multiply
    13,693.82x = 18,893.05 × 10,813.40
  4. Step 4: Simplify right side
    13,693.82x = 204,298,056.22
  5. Step 5: Solve for x
    x = 204,298,056.22/13,693.82
  6. Step 6: Final answer
    x = 14,919.00

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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.