Home / 8,222.40-12,309.75-4,834.89

Finding the Fourth Proportional to 8,222.40, 12,309.75 and 4,834.89

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Solution

The fourth proportional to 8,222.40, 12,309.75 and 4,834.89 is: 7,238.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,222.40 : 12,309.75 = 4,834.89 : x
  2. Step 2: Convert to fraction form
    8,222.40/12,309.75 = 4,834.89/x
  3. Step 3: Cross multiply
    8,222.40x = 12,309.75 × 4,834.89
  4. Step 4: Simplify right side
    8,222.40x = 59,516,287.18
  5. Step 5: Solve for x
    x = 59,516,287.18/8,222.40
  6. Step 6: Final answer
    x = 7,238.31

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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.