Home / 8,399.23-12,609.91-4,892.47

Finding the Fourth Proportional to 8,399.23, 12,609.91 and 4,892.47

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Solution

The fourth proportional to 8,399.23, 12,609.91 and 4,892.47 is: 7,345.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.23 : 12,609.91 = 4,892.47 : x
  2. Step 2: Convert to fraction form
    8,399.23/12,609.91 = 4,892.47/x
  3. Step 3: Cross multiply
    8,399.23x = 12,609.91 × 4,892.47
  4. Step 4: Simplify right side
    8,399.23x = 61,693,580.97
  5. Step 5: Solve for x
    x = 61,693,580.97/8,399.23
  6. Step 6: Final answer
    x = 7,345.15

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1.5x scale

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.