Home / 16,935.40-25,403.90-5,256.80

Finding the Fourth Proportional to 16,935.40, 25,403.90 and 5,256.80

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Solution

The fourth proportional to 16,935.40, 25,403.90 and 5,256.80 is: 7,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,935.40 : 25,403.90 = 5,256.80 : x
  2. Step 2: Convert to fraction form
    16,935.40/25,403.90 = 5,256.80/x
  3. Step 3: Cross multiply
    16,935.40x = 25,403.90 × 5,256.80
  4. Step 4: Simplify right side
    16,935.40x = 133,543,221.52
  5. Step 5: Solve for x
    x = 133,543,221.52/16,935.40
  6. Step 6: Final answer
    x = 7,885.45

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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.