Home / 8,905.65-12,289.83-4,926.90

Finding the Fourth Proportional to 8,905.65, 12,289.83 and 4,926.90

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Solution

The fourth proportional to 8,905.65, 12,289.83 and 4,926.90 is: 6,799.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.65 : 12,289.83 = 4,926.90 : x
  2. Step 2: Convert to fraction form
    8,905.65/12,289.83 = 4,926.90/x
  3. Step 3: Cross multiply
    8,905.65x = 12,289.83 × 4,926.90
  4. Step 4: Simplify right side
    8,905.65x = 60,550,763.43
  5. Step 5: Solve for x
    x = 60,550,763.43/8,905.65
  6. Step 6: Final answer
    x = 6,799.14

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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.