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Finding the Fourth Proportional to 13,703.51, 18,910.93 and 8,037.10

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Solution

The fourth proportional to 13,703.51, 18,910.93 and 8,037.10 is: 11,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,703.51 : 18,910.93 = 8,037.10 : x
  2. Step 2: Convert to fraction form
    13,703.51/18,910.93 = 8,037.10/x
  3. Step 3: Cross multiply
    13,703.51x = 18,910.93 × 8,037.10
  4. Step 4: Simplify right side
    13,703.51x = 151,989,035.50
  5. Step 5: Solve for x
    x = 151,989,035.50/13,703.51
  6. Step 6: Final answer
    x = 11,091.25

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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.