Home / 8,412.89-11,610.18-4,877.21

Finding the Fourth Proportional to 8,412.89, 11,610.18 and 4,877.21

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Solution

The fourth proportional to 8,412.89, 11,610.18 and 4,877.21 is: 6,730.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.89 : 11,610.18 = 4,877.21 : x
  2. Step 2: Convert to fraction form
    8,412.89/11,610.18 = 4,877.21/x
  3. Step 3: Cross multiply
    8,412.89x = 11,610.18 × 4,877.21
  4. Step 4: Simplify right side
    8,412.89x = 56,625,203.56
  5. Step 5: Solve for x
    x = 56,625,203.56/8,412.89
  6. Step 6: Final answer
    x = 6,730.77

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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.