Home / 18,656.28-28,015.62-11,652.60

Finding the Fourth Proportional to 18,656.28, 28,015.62 and 11,652.60

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Solution

The fourth proportional to 18,656.28, 28,015.62 and 11,652.60 is: 17,498.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,656.28 : 28,015.62 = 11,652.60 : x
  2. Step 2: Convert to fraction form
    18,656.28/28,015.62 = 11,652.60/x
  3. Step 3: Cross multiply
    18,656.28x = 28,015.62 × 11,652.60
  4. Step 4: Simplify right side
    18,656.28x = 326,454,813.61
  5. Step 5: Solve for x
    x = 326,454,813.61/18,656.28
  6. Step 6: Final answer
    x = 17,498.39

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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.