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Finding the Fourth Proportional to 8,621, 11,898.44 and 6,521.48

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Solution

The fourth proportional to 8,621, 11,898.44 and 6,521.48 is: 9,000.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621 : 11,898.44 = 6,521.48 : x
  2. Step 2: Convert to fraction form
    8,621/11,898.44 = 6,521.48/x
  3. Step 3: Cross multiply
    8,621x = 11,898.44 × 6,521.48
  4. Step 4: Simplify right side
    8,621x = 77,595,438.49
  5. Step 5: Solve for x
    x = 77,595,438.49/8,621
  6. Step 6: Final answer
    x = 9,000.75

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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.