Home / 10,928.40-16,360.20-6,543.60

Finding the Fourth Proportional to 10,928.40, 16,360.20 and 6,543.60

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Solution

The fourth proportional to 10,928.40, 16,360.20 and 6,543.60 is: 9,796.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.40 : 16,360.20 = 6,543.60 : x
  2. Step 2: Convert to fraction form
    10,928.40/16,360.20 = 6,543.60/x
  3. Step 3: Cross multiply
    10,928.40x = 16,360.20 × 6,543.60
  4. Step 4: Simplify right side
    10,928.40x = 107,054,604.72
  5. Step 5: Solve for x
    x = 107,054,604.72/10,928.40
  6. Step 6: Final answer
    x = 9,796.00

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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.