Home / 18,560.90-27,886.98-11,900.28

Finding the Fourth Proportional to 18,560.90, 27,886.98 and 11,900.28

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Solution

The fourth proportional to 18,560.90, 27,886.98 and 11,900.28 is: 17,879.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.90 : 27,886.98 = 11,900.28 : x
  2. Step 2: Convert to fraction form
    18,560.90/27,886.98 = 11,900.28/x
  3. Step 3: Cross multiply
    18,560.90x = 27,886.98 × 11,900.28
  4. Step 4: Simplify right side
    18,560.90x = 331,862,870.35
  5. Step 5: Solve for x
    x = 331,862,870.35/18,560.90
  6. Step 6: Final answer
    x = 17,879.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.