Home / 8,389.29-11,577.70-4,612.80

Finding the Fourth Proportional to 8,389.29, 11,577.70 and 4,612.80

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Solution

The fourth proportional to 8,389.29, 11,577.70 and 4,612.80 is: 6,365.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.29 : 11,577.70 = 4,612.80 : x
  2. Step 2: Convert to fraction form
    8,389.29/11,577.70 = 4,612.80/x
  3. Step 3: Cross multiply
    8,389.29x = 11,577.70 × 4,612.80
  4. Step 4: Simplify right side
    8,389.29x = 53,405,614.56
  5. Step 5: Solve for x
    x = 53,405,614.56/8,389.29
  6. Step 6: Final answer
    x = 6,365.93

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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.