Home / 8,422.09-12,608.67-4,901.36

Finding the Fourth Proportional to 8,422.09, 12,608.67 and 4,901.36

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Solution

The fourth proportional to 8,422.09, 12,608.67 and 4,901.36 is: 7,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.09 : 12,608.67 = 4,901.36 : x
  2. Step 2: Convert to fraction form
    8,422.09/12,608.67 = 4,901.36/x
  3. Step 3: Cross multiply
    8,422.09x = 12,608.67 × 4,901.36
  4. Step 4: Simplify right side
    8,422.09x = 61,799,567.75
  5. Step 5: Solve for x
    x = 61,799,567.75/8,422.09
  6. Step 6: Final answer
    x = 7,337.80

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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.