Home / 12,875.46-17,754.06-11,181.90

Finding the Fourth Proportional to 12,875.46, 17,754.06 and 11,181.90

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Solution

The fourth proportional to 12,875.46, 17,754.06 and 11,181.90 is: 15,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,875.46 : 17,754.06 = 11,181.90 : x
  2. Step 2: Convert to fraction form
    12,875.46/17,754.06 = 11,181.90/x
  3. Step 3: Cross multiply
    12,875.46x = 17,754.06 × 11,181.90
  4. Step 4: Simplify right side
    12,875.46x = 198,524,123.51
  5. Step 5: Solve for x
    x = 198,524,123.51/12,875.46
  6. Step 6: Final answer
    x = 15,418.80

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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.