Home / 9,816.56-13,539.94-6,458.30

Finding the Fourth Proportional to 9,816.56, 13,539.94 and 6,458.30

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Solution

The fourth proportional to 9,816.56, 13,539.94 and 6,458.30 is: 8,907.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,816.56 : 13,539.94 = 6,458.30 : x
  2. Step 2: Convert to fraction form
    9,816.56/13,539.94 = 6,458.30/x
  3. Step 3: Cross multiply
    9,816.56x = 13,539.94 × 6,458.30
  4. Step 4: Simplify right side
    9,816.56x = 87,444,926.80
  5. Step 5: Solve for x
    x = 87,444,926.80/9,816.56
  6. Step 6: Final answer
    x = 8,907.90

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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.