Home / 10,621.10-14,664.03-9,238.70

Finding the Fourth Proportional to 10,621.10, 14,664.03 and 9,238.70

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Solution

The fourth proportional to 10,621.10, 14,664.03 and 9,238.70 is: 12,755.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.10 : 14,664.03 = 9,238.70 : x
  2. Step 2: Convert to fraction form
    10,621.10/14,664.03 = 9,238.70/x
  3. Step 3: Cross multiply
    10,621.10x = 14,664.03 × 9,238.70
  4. Step 4: Simplify right side
    10,621.10x = 135,476,573.96
  5. Step 5: Solve for x
    x = 135,476,573.96/10,621.10
  6. Step 6: Final answer
    x = 12,755.42

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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.