Home / 8,389.15-11,576.78-4,612.31

Finding the Fourth Proportional to 8,389.15, 11,576.78 and 4,612.31

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Solution

The fourth proportional to 8,389.15, 11,576.78 and 4,612.31 is: 6,364.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.15 : 11,576.78 = 4,612.31 : x
  2. Step 2: Convert to fraction form
    8,389.15/11,576.78 = 4,612.31/x
  3. Step 3: Cross multiply
    8,389.15x = 11,576.78 × 4,612.31
  4. Step 4: Simplify right side
    8,389.15x = 53,395,677.93
  5. Step 5: Solve for x
    x = 53,395,677.93/8,389.15
  6. Step 6: Final answer
    x = 6,364.85

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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.