Home / 16,718.40-25,077.60-12,289.73

Finding the Fourth Proportional to 16,718.40, 25,077.60 and 12,289.73

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Solution

The fourth proportional to 16,718.40, 25,077.60 and 12,289.73 is: 18,434.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,718.40 : 25,077.60 = 12,289.73 : x
  2. Step 2: Convert to fraction form
    16,718.40/25,077.60 = 12,289.73/x
  3. Step 3: Cross multiply
    16,718.40x = 25,077.60 × 12,289.73
  4. Step 4: Simplify right side
    16,718.40x = 308,196,807.66
  5. Step 5: Solve for x
    x = 308,196,807.66/16,718.40
  6. Step 6: Final answer
    x = 18,434.59

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Similar ratio
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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.