Home / 8,912.81-13,363.14-4,521.80

Finding the Fourth Proportional to 8,912.81, 13,363.14 and 4,521.80

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Solution

The fourth proportional to 8,912.81, 13,363.14 and 4,521.80 is: 6,779.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,912.81 : 13,363.14 = 4,521.80 : x
  2. Step 2: Convert to fraction form
    8,912.81/13,363.14 = 4,521.80/x
  3. Step 3: Cross multiply
    8,912.81x = 13,363.14 × 4,521.80
  4. Step 4: Simplify right side
    8,912.81x = 60,425,446.45
  5. Step 5: Solve for x
    x = 60,425,446.45/8,912.81
  6. Step 6: Final answer
    x = 6,779.62

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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.