Home / 13,538.36-18,677.10-9,558.84

Finding the Fourth Proportional to 13,538.36, 18,677.10 and 9,558.84

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Solution

The fourth proportional to 13,538.36, 18,677.10 and 9,558.84 is: 13,187.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,538.36 : 18,677.10 = 9,558.84 : x
  2. Step 2: Convert to fraction form
    13,538.36/18,677.10 = 9,558.84/x
  3. Step 3: Cross multiply
    13,538.36x = 18,677.10 × 9,558.84
  4. Step 4: Simplify right side
    13,538.36x = 178,531,410.56
  5. Step 5: Solve for x
    x = 178,531,410.56/13,538.36
  6. Step 6: Final answer
    x = 13,187.08

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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.