Home / 10,620.10-14,662.65-9,237.70

Finding the Fourth Proportional to 10,620.10, 14,662.65 and 9,237.70

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Solution

The fourth proportional to 10,620.10, 14,662.65 and 9,237.70 is: 12,754.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,620.10 : 14,662.65 = 9,237.70 : x
  2. Step 2: Convert to fraction form
    10,620.10/14,662.65 = 9,237.70/x
  3. Step 3: Cross multiply
    10,620.10x = 14,662.65 × 9,237.70
  4. Step 4: Simplify right side
    10,620.10x = 135,449,161.91
  5. Step 5: Solve for x
    x = 135,449,161.91/10,620.10
  6. Step 6: Final answer
    x = 12,754.04

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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.