Home / 16,870.41-23,272.11-12,884.40

Finding the Fourth Proportional to 16,870.41, 23,272.11 and 12,884.40

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Solution

The fourth proportional to 16,870.41, 23,272.11 and 12,884.40 is: 17,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,870.41 : 23,272.11 = 12,884.40 : x
  2. Step 2: Convert to fraction form
    16,870.41/23,272.11 = 12,884.40/x
  3. Step 3: Cross multiply
    16,870.41x = 23,272.11 × 12,884.40
  4. Step 4: Simplify right side
    16,870.41x = 299,847,174.08
  5. Step 5: Solve for x
    x = 299,847,174.08/16,870.41
  6. Step 6: Final answer
    x = 17,773.56

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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.