Home / 16,928.47-25,402.16-6,405.49

Finding the Fourth Proportional to 16,928.47, 25,402.16 and 6,405.49

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Solution

The fourth proportional to 16,928.47, 25,402.16 and 6,405.49 is: 9,611.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,928.47 : 25,402.16 = 6,405.49 : x
  2. Step 2: Convert to fraction form
    16,928.47/25,402.16 = 6,405.49/x
  3. Step 3: Cross multiply
    16,928.47x = 25,402.16 × 6,405.49
  4. Step 4: Simplify right side
    16,928.47x = 162,713,281.86
  5. Step 5: Solve for x
    x = 162,713,281.86/16,928.47
  6. Step 6: Final answer
    x = 9,611.81

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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.