Home / 13,187.37-18,196.95-10,505.42

Finding the Fourth Proportional to 13,187.37, 18,196.95 and 10,505.42

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Solution

The fourth proportional to 13,187.37, 18,196.95 and 10,505.42 is: 14,496.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.37 : 18,196.95 = 10,505.42 : x
  2. Step 2: Convert to fraction form
    13,187.37/18,196.95 = 10,505.42/x
  3. Step 3: Cross multiply
    13,187.37x = 18,196.95 × 10,505.42
  4. Step 4: Simplify right side
    13,187.37x = 191,166,511.48
  5. Step 5: Solve for x
    x = 191,166,511.48/13,187.37
  6. Step 6: Final answer
    x = 14,496.19

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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.