Home / 8,905.40-12,289.22-4,926.42

Finding the Fourth Proportional to 8,905.40, 12,289.22 and 4,926.42

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Solution

The fourth proportional to 8,905.40, 12,289.22 and 4,926.42 is: 6,798.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.40 : 12,289.22 = 4,926.42 : x
  2. Step 2: Convert to fraction form
    8,905.40/12,289.22 = 4,926.42/x
  3. Step 3: Cross multiply
    8,905.40x = 12,289.22 × 4,926.42
  4. Step 4: Simplify right side
    8,905.40x = 60,541,859.19
  5. Step 5: Solve for x
    x = 60,541,859.19/8,905.40
  6. Step 6: Final answer
    x = 6,798.33

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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.