Home / 15,202.58-20,974.02-8,913.74

Finding the Fourth Proportional to 15,202.58, 20,974.02 and 8,913.74

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Solution

The fourth proportional to 15,202.58, 20,974.02 and 8,913.74 is: 12,297.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202.58 : 20,974.02 = 8,913.74 : x
  2. Step 2: Convert to fraction form
    15,202.58/20,974.02 = 8,913.74/x
  3. Step 3: Cross multiply
    15,202.58x = 20,974.02 × 8,913.74
  4. Step 4: Simplify right side
    15,202.58x = 186,956,961.03
  5. Step 5: Solve for x
    x = 186,956,961.03/15,202.58
  6. Step 6: Final answer
    x = 12,297.71

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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.