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Finding the Fourth Proportional to 10,621, 15,936.06 and 5,689.24

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Solution

The fourth proportional to 10,621, 15,936.06 and 5,689.24 is: 8,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621 : 15,936.06 = 5,689.24 : x
  2. Step 2: Convert to fraction form
    10,621/15,936.06 = 5,689.24/x
  3. Step 3: Cross multiply
    10,621x = 15,936.06 × 5,689.24
  4. Step 4: Simplify right side
    10,621x = 90,664,069.99
  5. Step 5: Solve for x
    x = 90,664,069.99/10,621
  6. Step 6: Final answer
    x = 8,536.30

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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.