Home / 9,816.05-13,539.25-6,457.79

Finding the Fourth Proportional to 9,816.05, 13,539.25 and 6,457.79

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Solution

The fourth proportional to 9,816.05, 13,539.25 and 6,457.79 is: 8,907.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,816.05 : 13,539.25 = 6,457.79 : x
  2. Step 2: Convert to fraction form
    9,816.05/13,539.25 = 6,457.79/x
  3. Step 3: Cross multiply
    9,816.05x = 13,539.25 × 6,457.79
  4. Step 4: Simplify right side
    9,816.05x = 87,433,675.18
  5. Step 5: Solve for x
    x = 87,433,675.18/9,816.05
  6. Step 6: Final answer
    x = 8,907.21

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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.